CVE-2018-15501

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-125

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406Exploit, Issue Tracking, Patch, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1104641Issue Tracking, Patch, Third Party Advisory
https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649Patch, Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.26.6Release Notes, Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.27.4Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.htmlMailing List, Third Party Advisory
https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.htmlThird Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406Exploit, Issue Tracking, Patch, Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1104641Issue Tracking, Patch, Third Party Advisory
https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649Patch, Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.26.6Release Notes, Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.27.4Release Notes, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.htmlMailing List, Third Party Advisory
https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.htmlThird Party Advisory

Timeline

Published: Aug 18, 2018
Last modified: Jun 17, 2026
NVD status: Modified

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