Out-of-bounds Write Affecting zlib package, versions <1.2.12-r2


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.34% (73rd percentile)

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  • Snyk IDSNYK-ALPINE316-ZLIB-2976176
  • published6 Aug 2022
  • disclosed5 Aug 2022

Introduced: 5 Aug 2022

CVE-2022-37434  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Alpine:3.16 zlib to version 1.2.12-r2 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 Alpine. See How to fix? for Alpine:3.16 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