Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package libgit2 (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2010-LIBGIT2-1032507
- published22 Aug 2018
- disclosed18 Aug 2018
Introduced: 18 Aug 2018
CVE-2018-15501 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libgit2 package and not the libgit2 package as distributed by Ubuntu.
In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\0' byte to trigger an out-of-bounds read that leads to DoS.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-15501
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-15501
- https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html
- https://security-tracker.debian.org/tracker/CVE-2018-15501
- https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649
- https://github.com/libgit2/libgit2/releases/tag/v0.26.6
- https://github.com/libgit2/libgit2/releases/tag/v0.27.4
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406
- https://bugzilla.suse.com/show_bug.cgi?id=1104641
- https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html