Out-of-bounds Write Affecting klibc package, versions <2.0.7-1ubuntu5.2


Severity

Recommended
medium

Based on Ubuntu security rating

    Threat Intelligence

    EPSS
    0.34% (72nd percentile)

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  • Snyk ID SNYK-UBUNTU2004-KLIBC-6593766
  • published 10 Apr 2024
  • disclosed 5 Aug 2022

How to fix?

Upgrade Ubuntu:20.04 klibc to version 2.0.7-1ubuntu5.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream klibc package and not the klibc package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call inflateGetHeader (e.g., see the nodejs/node reference).

References

CVSS Scores

version 3.1
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NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

8.1 high
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Red Hat

7 high