CVE Vulnerability

CVE-2018-10887

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.

5.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

Scope

8.1 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/libgit2/libgit2/releases/tag/v0.27.3 Patch Release Notes
https://github.com/libgit2/libgit2/commit/c1577110467b701dcbcf9439ac225ea851b47d22 Patch Third Party Advisory
https://github.com/libgit2/libgit2/commit/3f461902dc1072acb8b7607ee65d0a0458ffac2a Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1598021 Issue Tracking Patch
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2018-07-10 02:29

Updated : 2022-04-19 04:07

NVD link : CVE-2018-10887

Mitre link : CVE-2018-10887

Products Affected
No products.
CWE
CWE-194

Unexpected Sign Extension