CVE-2018-10887

 

Published at: - 10-07-2018 04:29

Last modified: - 19-04-2022 06:07

Total changes: - 3

Description

A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://github.com/libgit2/libgit2/releases/tag/v0.27.3
• https://github.com/libgit2/libgit2/commit/c1577110467b701dcbcf9439ac225ea851b47d22
• https://github.com/libgit2/libgit2/commit/3f461902dc1072acb8b7607ee65d0a0458ffac2a
• https://bugzilla.redhat.com/show_bug.cgi?id=1598021
• [debian-lts-announce] 20180825 [SECURITY] [DLA 1477-1] libgit2 security update-Mailing List, Third Party Advisory
• [debian-lts-announce] 20220321 [SECURITY] [DLA 2936-1] libgit2 security update-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2018-10887

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures