Out-of-bounds Write Affecting zlib package, versions <1:1.2.11.dfsg-2+deb11u1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.34% (73rd percentile)

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  • Snyk ID SNYK-DEBIAN11-ZLIB-2433933
  • published 26 Mar 2022
  • disclosed 25 Mar 2022

How to fix?

Upgrade Debian:11 zlib to version 1:1.2.11.dfsg-2+deb11u1 or higher.

NVD Description

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

zlib before 1.2.12 allows memory corruption when deflating (i.e., when compressing) if the input has many distant matches.

References

CVSS Scores

version 3.1
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NVD

Recommended
7.5 high
  • 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)
    High
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SUSE

8.1 high
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Red Hat

8.2 high