OpenSUSE Linux update for the Linux Kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2018-1091 CVE-2018-7740 CVE-2018-8043 |
| CWE-ID | CWE-264 CWE-119 CWE-476 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #2 is available. |
| Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
| Vendor | Linux Foundation |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Denial of service
EUVDB-ID: #VU11327
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-2018-1091
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the flush_tmregs_to_thread function, as defined in the arch/powerpc/kernel/ptrace.c source code, due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path. A local attacker can use unprivileged userspace during a core dump on a POWER host and cause the service to crash.
Update the affected packages.
Linux kernel: 4.13 - 4.13.4
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-04/msg00012.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) 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
DescriptionThe 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.
Update the affected packages.
Linux kernel: 4.15.0 - 4.15.7
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-04/msg00012.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, proof of concept for this vulnerability is available.
3) NULL pointer dereference
EUVDB-ID: #VU11765
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-2018-8043
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the unimac_mdio_probe function in drivers/net/phy/mdio-bcm-unimac.c due to improper validation of certain resource availability. A local attacker can trigger NULL pointer dereference and cause the service to crash.
Update the affected packages.
Linux kernel: 4.15.0 - 4.15.8
External linkshttp://lists.opensuse.org/opensuse-security-announce/2018-04/msg00012.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.
