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Race Condition Affecting kernel-abi-whitelists package, versions <0:3.10.0-1127.el7

Severity

 Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-ORACLE7-KERNELABIWHITELISTS-2549915
  • published10 Apr 2022
  • disclosed12 Apr 2019
Report a new vulnerability Found a mistake?

Introduced: 12 Apr 2019

CVE-2019-11190  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kernel-abi-whitelists to version 0:3.10.0-1127.el7 or higher.
This issue was patched in ELSA-2020-1016.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-abi-whitelists package and not the kernel-abi-whitelists 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