Use After Free Affecting kernel-uek package, versions <0:4.14.35-1818.4.5.el7uek
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ORACLE7-KERNELUEK-2531889
- published10 Apr 2022
- disclosed27 Jul 2018
Introduced: 27 Jul 2018
CVE-2018-14611 (opens in a new tab)How to fix?
Upgrade Oracle:7 kernel-uek to version 0:4.14.35-1818.4.5.el7uek or higher.
This issue was patched in ELSA-2018-4270.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uek package and not the kernel-uek package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c.
References
- https://linux.oracle.com/cve/CVE-2018-14611.html
- https://linux.oracle.com/errata/ELSA-2018-4270.html
- http://www.securityfocus.com/bid/104917
- https://bugzilla.kernel.org/show_bug.cgi?id=199839
- https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- https://patchwork.kernel.org/patch/10503099/
- https://usn.ubuntu.com/3932-1/
- https://usn.ubuntu.com/3932-2/
- https://usn.ubuntu.com/4094-1/
- https://usn.ubuntu.com/4118-1/