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Mageia 8 2023-0033 Critical: Git Integer Overflow Threat

mageia
Calendar Grey February 7, 2023
Dist Mageia Esm H88
Mageia 2023-0056 resolves significant buffer overflow issues in wget that could allow unauthorized code execution vulnerabilities.
gitattributes are a mechanism to allow defining attributes for paths

Summary

gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a '.gitattributes' file to the repository, which contains a set of file patterns and the attributes that should be set for paths matching this pattern. When parsing gitattributes, multiple integer overflows can occur when there is a huge number of path patterns, a huge number of attributes for a single pattern, or when the declared attribute names are huge. These overflows can be triggered via a crafted '.gitattributes' file that may be part of the commit history. Git silently splits lines longer than 2KB when parsing gitattributes from a file, but not when parsing them from the index. Consequentially, the failure mode depends on whether the file exists in the working tree, the index or both. This integer overflow can result in arbitrary heap reads and writes, which may result in remote code execution. (CVE-2022-23521)
'git log' can display commits in an arbitrary format u...

Read the Full Advisory

References

- https://bugs.mageia.org/show_bug.cgi?id=31428

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- https://lore.kernel.org/git/xmqqa62g8i6u.fsf@gitster.g/T/

- https://ubuntu.com/security/notices/USN-5810-1

- https://ubuntu.com/security/notices/USN-5810-2

- https://www.cve.org/CVERecord?id=CVE-2022-23521

- https://www.cve.org/CVERecord?id=CVE-2022-41903

Resolution

SRPMS

- 8/core/git-2.30.7-1.mga8

Severity
critical
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Critical

Publication date: 07 Feb 2023
URL: https://advisories.mageia.org/MGASA-2023-0033.html
Type: security
CVE: CVE-2022-23521, CVE-2022-41903

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