CVE-2018-15501 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

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://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5