Out-of-Bounds Affecting glibc package, versions <2.17-2


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.9% (84th percentile)

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  • Snyk ID SNYK-DEBIAN11-GLIBC-531946
  • published 8 Feb 2013
  • disclosed 8 Feb 2013

How to fix?

Upgrade Debian:11 glibc to version 2.17-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

Buffer overflow in the extend_buffers function in the regular expression matcher (posix/regexec.c) in glibc, possibly 2.17 and earlier, allows context-dependent attackers to cause a denial of service (memory corruption and crash) via crafted multibyte characters.

CVSS Scores

version 3.1
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NVD

5.3 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    Low
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Red Hat

4.3 medium