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Integer Overflow or Wraparound Affecting glibc package, versions <0:2.17-260.el7

Severity

 Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.41% (88th percentile)

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  • Snyk IDSNYK-RHEL7-GLIBC-1490066
  • published26 Jul 2021
  • disclosed4 Feb 2018
Report a new vulnerability Found a mistake?

Introduced: 4 Feb 2018

CVE-2018-11236  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade RHEL:7 glibc to version 0:2.17-260.el7 or higher.
This issue was patched in RHSA-2018:3092.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.