Out-of-bounds Write Affecting glibc-common package, versions <0:2.28-127.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-RHEL8-GLIBCCOMMON-3949032
  • published26 Jul 2021
  • disclosed20 Jan 2020

Introduced: 20 Jan 2020

CVE-2020-1751  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:8 glibc-common to version 0:2.28-127.el8 or higher.
This issue was patched in RHSA-2020:4444.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-common package and not the glibc-common package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

CVSS Scores

version 3.1