OpenSUSE Linux update for the Linux Kernel
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2017-1000364 CVE-2017-1000380 CVE-2017-7346 CVE-2017-9242 |
| CWE-ID | CWE-119 CWE-362 CWE-20 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
| Vendor | Linux Foundation |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Memory corruption
EUVDB-ID: #VU7131
Risk: Medium
CVSSv3.1: 8.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
CVE-ID: CVE-2017-1000364
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
Description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to memory management errors in implementation of various functions under multiple operating systems. A local or remote attacker can trigger the affected application to process specially crafted data, trigger memory corruption and execute arbitrary code on the target system. The vulnerability is dubbed by Qualys researchers as “Stack Clash”.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected packages.
Linux kernel: 2.6.0 - 4.11.5
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-06/msg00026.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. However, a fully functional exploit for this vulnerability is available.
2) Information disclosure
EUVDB-ID: #VU9478
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-1000380
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The vulnerability exists in the sound/core/timer.c code due to a race condition that exists in the timing functionality of the ALSA/dev/snd/timer driver when a read and an ioctl system call happens simultaneously. A local attacker can cause uninitialized memory from the kernel heap to be copied to user space and read kernel-space memory.
Update the affected packages.
Linux kernel: 4.9 - 4.11.5
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-06/msg00026.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.
3) Denial of service
EUVDB-ID: #VU7666
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-7346
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to the failure to validate certain levels data. A local attacker can use a specially crafted ioctl call for a /dev/dri/renderD device to cause the system to hang.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Linux kernel: 4.0.1 - 4.10.7
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-06/msg00026.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) Denial of service
EUVDB-ID: #VU7250
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-2017-9242
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to an error in the __ip6_append_data function when checking whether an overwrite of an skb data structure may occur. A local attacker can use specially crafted system calls and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Linux kernel: 4.0.1 - 4.11.2
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-06/msg00026.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.
