NULL Pointer Dereference Affecting kernel-obs-build package, versions <4.12.14-150.27.1
Threat Intelligence
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Start learning- Snyk IDSNYK-SLES150-KERNELOBSBUILD-2748787
- published14 Apr 2022
- disclosed15 Jul 2019
Introduced: 15 Jul 2019
CVE-2019-12818 (opens in a new tab)How to fix?
Upgrade SLES:15.0 kernel-obs-build to version 4.12.14-150.27.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-obs-build package and not the kernel-obs-build package as distributed by SLES.
See How to fix? for SLES:15.0 relevant fixed versions and status.
An issue was discovered in the Linux kernel before 4.20.15. The nfc_llcp_build_tlv function in net/nfc/llcp_commands.c may return NULL. If the caller does not check for this, it will trigger a NULL pointer dereference. This will cause denial of service. This affects nfc_llcp_build_gb in net/nfc/llcp_core.c.
References
- https://www.suse.com/security/cve/CVE-2019-12818.html
- https://bugzilla.suse.com/1138293
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html
- http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
- http://www.securityfocus.com/bid/108776
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5
- https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5
- https://security.netapp.com/advisory/ntap-20190710-0002/
- https://support.f5.com/csp/article/K91444306
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15