Advisory Published

USN-6678-1: libgit2 vulnerabilities

First published: Tue Mar 05 2024(Updated: )

It was discovered that libgit2 mishandled equivalent filenames on NTFS partitions. If a user or automated system were tricked into cloning a specially crafted repository, an attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2020-12278, CVE-2020-12279) It was discovered that libgit2 did not perform certificate checking by default. An attacker could possibly use this issue to perform a machine-in-the-middle attack. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2023-22742) It was discovered that libgit2 could be made to run into an infinite loop. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 23.10. (CVE-2024-24575) It was discovered that libgit2 did not properly manage memory. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2024-24577)

Affected SoftwareAffected VersionHow to fix
All of
ubuntu/libgit2-1.5<1.5.1+ds-1ubuntu1.1
1.5.1+ds-1ubuntu1.1
Ubuntu Ubuntu=23.10
All of
ubuntu/libgit2-1.1<1.1.0+dfsg.1-4.1ubuntu0.1
1.1.0+dfsg.1-4.1ubuntu0.1
Ubuntu Ubuntu=22.04
All of
ubuntu/libgit2-28<0.28.4+dfsg.1-2ubuntu0.1
0.28.4+dfsg.1-2ubuntu0.1
Ubuntu Ubuntu=20.04
All of
ubuntu/libgit2-26<0.26.0+dfsg.1-1.1ubuntu0.2+esm1
0.26.0+dfsg.1-1.1ubuntu0.2+esm1
Ubuntu Ubuntu=18.04
All of
ubuntu/libgit2-24<0.24.1-2ubuntu0.2+esm2
0.24.1-2ubuntu0.2+esm2
Ubuntu Ubuntu=16.04

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Child vulnerabilities

(Contains the following vulnerabilities)

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