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Stack-based Buffer Overflow Affecting curl package, versions <0:7.79.1-7.amzn2.0.1

0.0
medium

Snyk CVSS

    Attack Complexity High
    Availability High

    Threat Intelligence

    EPSS 0.13% (48th percentile)
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NVD
6.5 medium
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Red Hat
5.3 medium

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  • Snyk ID SNYK-AMZN2-CURL-3160000
  • published 7 Dec 2022
  • disclosed 5 Dec 2022
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Introduced: 5 Dec 2022

CVE-2022-35260 Open this link in a new tab
CWE-121 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 curl to version 0:7.79.1-7.amzn2.0.1 or higher.
This issue was patched in ALAS2-2022-1882.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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.