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CVE-2018-10888

Published: 10 July 2018

A flaw was found in libgit2 before version 0.27.3. A missing check in git_delta_apply function in delta.c file, may lead to an out-of-bound read while reading a binary delta file. An attacker may use this flaw to cause a Denial of Service.

From the Ubuntu Security Team

Riccardo Schirone discovered that libgit2 mishandled specially crafted input. If a victim were tricked into cloning a malicious repository or applying a malicious patch, an attacker could cause libgit2 to leak sensitive information or crash.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
libgit2
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic
Released (0.26.0+dfsg.1-1.1ubuntu0.2)
trusty
Released (0.19.0-2ubuntu0.4)
upstream
Released (0.27.4+dfsg.1-0.1)
xenial
Released (0.24.1-2ubuntu0.2)
Patches:
other: https://github.com/libgit2/libgit2/commit/9844d38bed10e9ff17174434b3421b227ae710f3

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H