Race Condition Affecting kernel-uek-debug-devel package, versions <0:4.1.12-124.27.1.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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-ORACLE7-KERNELUEKDEBUGDEVEL-2546267
- published10 Apr 2022
- disclosed12 Apr 2019
Introduced: 12 Apr 2019
CVE-2019-11190 (opens in a new tab)How to fix?
Upgrade Oracle:7 kernel-uek-debug-devel to version 0:4.1.12-124.27.1.el7uek or higher.
This issue was patched in ELSA-2019-4642.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-uek-debug-devel package and not the kernel-uek-debug-devel package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.
References
- https://linux.oracle.com/cve/CVE-2019-11190.html
- https://linux.oracle.com/errata/ELSA-2019-4642.html
- https://linux.oracle.com/errata/ELSA-2019-4644.html
- https://linux.oracle.com/errata/ELSA-2019-4646.html
- https://linux.oracle.com/errata/ELSA-2020-1016.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html
- http://www.openwall.com/lists/oss-security/2019/04/15/1
- http://www.securityfocus.com/bid/107890
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/commit/?id=a5b5352558f6808db0589644ea5401b3e3148a0d
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/commit/?id=e1676b55d874a43646e8b2c46d87f2f3e45516ff
- https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
- https://usn.ubuntu.com/4008-1/
- https://usn.ubuntu.com/4008-2/
- https://usn.ubuntu.com/4008-3/
- https://www.openwall.com/lists/oss-security/2019/04/03/4
- https://www.openwall.com/lists/oss-security/2019/04/03/4/1