CVE-2018-15501
First published: Sat Aug 18 2018(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian GNU/Linux | =8.0 | |
| Debian GNU/Linux | =9.0 | |
| libgit2 | <0.26.6 | |
| libgit2 | >=0.27.0<0.27.4 |
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Reference Links
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406
- https://bugzilla.suse.com/show_bug.cgi?id=1104641
- 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://lists.debian.org/debian-lts-announce/2018/08/msg00024.html
- https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html
- https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html
Frequently Asked Questions
What is CVE-2018-15501?
CVE-2018-15501 is a vulnerability in libgit2 before version 0.26.6 and 0.27.x before 0.27.4 that allows a remote attacker to trigger an out-of-bounds read leading to denial of service (DoS).
How does CVE-2018-15501 impact Debian Debian Linux 8.0?
Debian Debian Linux 8.0 is affected by CVE-2018-15501. Users running this version should update to a patched version of libgit2.
How does CVE-2018-15501 impact Debian Debian Linux 9.0?
Debian Debian Linux 9.0 is affected by CVE-2018-15501. Users running this version should update to a patched version of libgit2.
How does CVE-2018-15501 impact Libgit2 before version 0.26.6?
Libgit2 before version 0.26.6 is affected by CVE-2018-15501. Users running this version should update to a newer version.
How does CVE-2018-15501 impact Libgit2 between version 0.27.0 and 0.27.4?
Libgit2 between version 0.27.0 and 0.27.4 are affected by CVE-2018-15501. Users running these versions should update to a patched version.
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- source/MITRE
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- vendor/debian
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