Stack-based Buffer Overflow Affecting glibc-langpack-lzh package, versions <0:2.28-127.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-RHEL8-GLIBCLANGPACKLZH-1449955
  • published26 Jul 2021
  • disclosed12 Feb 2020

Introduced: 12 Feb 2020

CVE-2020-10029  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade RHEL:8 glibc-langpack-lzh 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-langpack-lzh package and not the glibc-langpack-lzh package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.

CVSS Scores

version 3.1