Out-of-bounds Write Affecting curl package, versions <7.86.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.17% (56th percentile)

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  • Snyk IDSNYK-ALPINE318-CURL-5511996
  • published23 Nov 2022
  • disclosed5 Dec 2022

Introduced: 23 Nov 2022

CVE-2022-35260  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Alpine:3.18 curl to version 7.86.0-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine. See How to fix? for Alpine:3.18 relevant fixed versions and status.

curl can be told to parse a .netrc file for credentials. If that file endsin a line with 4095 consecutive non-white space letters and no newline, curlwould first read past the end of the stack-based buffer, and if the readworks, write a zero byte beyond its boundary.This will in most cases cause a segfault or similar, but circumstances might also cause different outcomes.If a malicious user can provide a custom netrc file to an application or otherwise affect its contents, this flaw could be used as denial-of-service.

CVSS Scores

version 3.1