OpenSUSE Linux update for the Linux Kernel
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2017-11473 CVE-2017-7533 CVE-2017-7541 CVE-2017-7542 |
| CWE-ID | CWE-120 CWE-362 CWE-119 CWE-835 CWE-190 |
| Exploitation vector | Local |
| Public exploit | Vulnerability #2 is being exploited in the wild. |
| Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
| Vendor | Linux Foundation |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU12137
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-2017-11473
CWE-ID:
CWE-120 - Buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists in the mp_override_legacy_irq() function in arch/x86/kernel/acpi/boot.c due to buffer overflow. A local attacker can submit a specially crafted ACPI table, trigger memory corruption and gain root privileges.
Update the affected packages.
Linux kernel: 4.12 - 4.12.1
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-08/msg00032.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.
2) Race condition
EUVDB-ID: #VU7694
Risk: Medium
CVSSv3.1: 8.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]
CVE-ID: CVE-2017-7533
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to execute arbitrary code with escalated privileges.
The vulnerability exists due to a race condition in the fsnotify implementation in the Linux kernel through 4.12.4. A local user can create an application, which leverages simultaneous execution of the inotify_handle_event and vfs_rename functions and trigger memory corruption and denials of service attack or execute arbitrary code on the target system with root privileges.
Successful exploitation of this vulnerability may allow a local user to obtain elevated privileges on the system.
Note: this vulnerability is being active exploited in the wild for 32-bit systems in August 2017.
Update the affected packages.
Linux kernel: 4.12.1 - 4.12.4
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-08/msg00032.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?
Yes. This vulnerability is being exploited in the wild.
3) Buffer overflow
EUVDB-ID: #VU7585
Risk: Low
CVSSv3.1: 8.1 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-7541
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to execute arbitrary code on the target system with elevated privileges.
The vulnerability exists due to boundary error in brcmf_cfg80211_mgmt_tx() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.12.3. A local user can create a specially crafted NL80211_CMD_FRAME Netlink packet and trigger DoS conditions or execute arbitrary code on the target system with elevated privileges.
Successful exploitation of this vulnerability may allow an attacker to obtain elevated privileges.
MitigationUpdate the affected packages.
Linux kernel: 4.12.1 - 4.12.2
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-08/msg00032.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: #VU10722
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-2017-7542
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the ip6_find_1stfragopt function in net/ipv6/output_core.c due to leveraging the ability to open a raw socket. A local attacker can trigger integer overflow and infinite loop and cause a denial of service.
Update the affected packages.
Linux kernel: 4.12.1 - 4.12.3
External linkshttp://lists.opensuse.org/opensuse-security-announce/2017-08/msg00032.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.
