Debian update for linux



Published: 2018-05-02
Risk Medium
Patch available YES
Number of vulnerabilities 27
CVE-ID CVE-2017-5715
CVE-2017-5753
CVE-2017-17975
CVE-2017-18193
CVE-2017-18216
CVE-2017-18218
CVE-2017-18222
CVE-2017-18224
CVE-2017-18241
CVE-2017-18257
CVE-2018-1065
CVE-2018-1066
CVE-2018-1068
CVE-2018-1092
CVE-2018-1093
CVE-2018-1108
CVE-2018-5803
CVE-2018-7480
CVE-2018-7566
CVE-2018-7740
CVE-2018-7757
CVE-2018-7995
CVE-2018-8087
CVE-2018-8781
CVE-2018-8822
CVE-2018-10323
CVE-2018-1000199
CWE-ID CWE-200
CWE-416
CWE-119
CWE-476
CWE-120
CWE-362
CWE-20
CWE-264
CWE-125
CWE-665
CWE-415
CWE-401
CWE-190
CWE-388
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerability #2 is being exploited in the wild.
Public exploit code for vulnerability #14 is available.
Public exploit code for vulnerability #20 is available.
Public exploit code for vulnerability #24 is available.
Public exploit code for vulnerability #26 is available.
Vulnerable software
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Debian Linux
Operating systems & Components / Operating system

Vendor Debian

Security Bulletin

This security bulletin contains information about 27 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU9883

Risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2017-5715

CWE-ID: CWE-200 - Information exposure

Exploit availability: Yes

Description

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists in Intel CPU hardware due to improper implementation of the speculative execution of instructions. A local attacker can utilize branch target injection, execute arbitrary code, perform a side-channel attack and read sensitive memory information.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://newsroom.intel.com/news/intel-responds-to-security-research-findings/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Information disclosure

EUVDB-ID: #VU9884

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2017-5753

CWE-ID: CWE-200 - Information exposure

Exploit availability: Yes

Description

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists in Intel CPU hardware due to improper implementation of the speculative execution of instructions. A local attacker can perform a bounds check bypass, execute arbitrary code, conduct a side-channel attack and read sensitive memory information.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://01.org/security/advisories/intel-oss-10002


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

3) Use-after-free error

EUVDB-ID: #VU11313

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-17975

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the usbtv_probe function in drivers/media/usb/usbtv/usbtv-core.c due to use-after-free error. A local attacker can trigger failure of audio registration, because a kfree of the usbtv data structure occurs during a usbtv_video_free call, but the usbtv_video_fail label's code attempts to both access and free this data structure.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://linuxtesting.org/pipermail/ldv-project/2017-November/001008.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Memory corruption

EUVDB-ID: #VU11165

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18193

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the fs/f2fs/extent_cache.c source code due to improper handling of extent trees. A local attacker can use an application with multiple threads, trigger memory corruption and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dad48e73127ba10279ea33...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) NULL pointer dereference

EUVDB-ID: #VU11299

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18216

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to the affected software does not use the subsystem.su_mutex component while accessing an item->ci_parent. A local attacker can trigger NULL pointer dereference in in the fs/ocfs2/cluster/nodemanager.c source code file cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=853bc26a7ea39e354b9f88...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Use after free

EUVDB-ID: #VU11305

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18218

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the drivers/net/ethernet/hisilicon/hns/hns_enet.c source code due to use-after-free. A local attacker can trigger memory corruption and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=27463ad99f738ed93c7c8b...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Buffer overflow

EUVDB-ID: #VU10933

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18222

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition no the target system.

The weakness exists due to buffer overflow. A local attacker can trigger memory corruption and cause the system to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=412b65d15a7f8a93794653...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Race condition

EUVDB-ID: #VU10947

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18224

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allow a local attacker to cause DoS condition on the target system.

The weakness exists in the fs/ocfs2/aops.c source code due to race condition. A local attacker can trigger memory corruption and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e4c56d41eef5595035872...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) NULL pointer dereference

EUVDB-ID: #VU11264

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18241

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the fs/f2fs/segment.c source code file due to the use of the noflush_merge option, which could trigger a NULL value for a flush_cmd_control data structure. A local attacker can trigger NULL pointer dereference and kernel panic and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d4fdf8ba0e5808ba9ad6b4...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Improper input validation

EUVDB-ID: #VU11614

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18257

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in get_data_block function of the fs/f2fs/data.c library due to improper validation of user-supplied input. A local attacker can run a specially crafted program, designed to send malicious requests to the Linux Kernel and cause the system to stop responding.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b86e33075ed1909d800274...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Null pointer dereference

EUVDB-ID: #VU10851

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1065

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition no the target system.

The weakness exists due to NULL pointer dereference. A local attacker with the capability to insert iptables/netfilter rules can leverage the CAP_NET_RAW or CAP_NET_ADMIN capability, related to arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and ip6t_do_table in net/ipv6/netfilter/ip6_tables.c, trigger a jump to an invalid chain and cause the system to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://lists.openwall.net/netdev/2018/01/27/46


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) NULL pointer dereference

EUVDB-ID: #VU11191

Risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1066

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() function due to NULL pointer dereference. A remote attacker can cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cabfb3680f78981d26c078...


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Privilege escalation

EUVDB-ID: #VU11145

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1068

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists due to an error in the implementation of 32 bit syscall interface. A local attacker can gain root privileges.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b71812168571fa55e44cdd...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) NULL pointer dereference

EUVDB-ID: #VU11518

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-1092

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to improper processing of a customized ext4 image when using the ext4_iget function, as defined in the fs/ext4/inode.c source code file. A local attacker can mount a customized ext4 image, trigger NULL pointer dereference and an Out-of-Process Space (OOPS) kernel memory error and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://bugzilla.kernel.org/show_bug.cgi?id=199179


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

15) Out-of-bounds read

EUVDB-ID: #VU11524

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1093

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to improper validation of bitmap block numbers by the balloc.c and ialloc.c source codes. A local attacker can mount a customized ext4 image, trigger out-of-bounds read in the ext4/balloc.c:ext4_valid_block_bitmap() function ans cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://bugzilla.kernel.org/show_bug.cgi?id=199181


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

16) Improper initialization

EUVDB-ID: #VU12179

Risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1108

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the crng_ready() function due to improper initialization. A remote attacker can cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=43838a23a05fbd13e47d750d3dfd77001536dd33


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

17) Memory corruption

EUVDB-ID: #VU10812

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-5803

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the _sctp_make_chunk() function due to boundary error. A local attacker can submit a crafted SCTP packet, trigger memory corruption and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/?id=07f2c7ab6f8d0a7e7c5764c...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

18) Double-free error

EUVDB-ID: #VU10769

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-7480

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the block/blk-cgroup.c source code in the blkcg_init_queue function due to double free. A remote attacker can trigger memory corruption and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9b54d816e00425c3a51751...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

19) Memory corruption

EUVDB-ID: #VU11458

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-7566

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local attacker to write arbitrary files on the target system.

The weakness exists due to out-of-bounds write while ALSA sequencer core initializes the event pool on demand by invoking snd_seq_pool_init() when the first write happens and the pool is empty. A local attacker can trigger buffer overflow and use after free and reset the pool size manually via ioctl concurrently and write arbitrary files.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d15d662e89fc667b90cd29...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

20) Memory corruption

EUVDB-ID: #VU10922

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2018-7740

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition no the target system.

The weakness exists in the resv_map_release function due to boundary error when handling user-supplied input. A local attacker can execute an application that submits malicious input, trigger memory corruption and cause the system to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://bugzilla.kernel.org/show_bug.cgi?id=199037


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

21) Memory leak

EUVDB-ID: #VU10927

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-7757

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the drivers/scsi/libsas/sas_expander.c source code in the sas_smp_get_phy_events function due to memory leak. A local attacker can trigger memory corruption and cause the system to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4a491b1ab11ca0556d2fda...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

22) Race condition

EUVDB-ID: #VU10950

Risk: Low

CVSSv3.1: 3.5 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-7995

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the arch/x86/kernel/cpu/mcheck/mce.c source code due to race condition. A local attacker can trigger memory corruption and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b3b7c4795ccab5be71f080774c45b...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

23) Memory corruption

EUVDB-ID: #VU11137

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-8087

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the hwsim_new_radio_nl function due to memory leak. A local attacker can trigger memory corruption and cause the service the crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ddcff49b672239dda94d7...


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

24) Integer overflow

EUVDB-ID: #VU12338

Risk: Low

CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-8781

CWE-ID: CWE-190 - Integer overflow

Exploit availability: Yes

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists in the udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c due to integer overflow. A local attacker can gain full read and write permissions on kernel physical pages and execute arbitrary code.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://patchwork.freedesktop.org/patch/211845/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

25) Privilege escalation

EUVDB-ID: #VU11228

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-8822

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists in the ncp_read_kernel function due to incorrect buffer length handling. A local attacker can submit specially crafted data from a malicious NCPFS server, trigger memory corruption and execute arbitrary code with root privileges.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://www.mail-archive.com/netdev@vger.kernel.org/msg223373.html


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

26) NULL pointer dereference

EUVDB-ID: #VU12185

Risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:P/RL:U/RC:C]

CVE-ID: CVE-2018-10323

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the xfs_bmap_extents_to_btree function in the fs/xfs/libxfs/xfs_bmap.c source code file due to NULL pointer dereference when handling Extended File System (XFS) images. A local attacker can mount a specially crafted XFS filesystem image when filesystem operations are executed on the mounted image and cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://bugzilla.kernel.org/show_bug.cgi?id=199423


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

27) Error handling

EUVDB-ID: #VU12337

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1000199

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in the modify_user_hw_breakpoint() function due to error handling flaw. A local attacker can cause the service to crash.

Mitigation

Update the affected package to version: 4.9.88-1

Vulnerable software versions

Debian Linux: All versions

External links

http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f67b15037a7a50c57f72e69a6d59941ad90a0f0f


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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