PT-2018-3822 · Libgit2+2 · Libgit2+2

Riccardo Schirone · Published 2018-07-09 · Updated 2022-04-19 · CVE-2018-10888

Positive Technologies (AI Summary)

CVSS v2.0

7.1

High

Base vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions libgit2 versions prior to 0.27.3

Description The issue is related to a flaw in the git delta apply function within the delta.c file of libgit2, which can lead to an out-of-bound read while reading a binary delta file. This can be exploited by a remote attacker to cause a Denial of Service.

Recommendations For versions prior to 0.27.3, update to version 0.27.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the git delta apply function until a patch is available.

Exploit

Fix

DoS

Out of bounds Read

RCE

Weakness Enumeration

CWE-125

CWE-20

Related Identifiers

ALT-PU-2018-1992

ALT-PU-2018-2706

BDU:2022-05859

CVE-2018-10888

DLA-1477-1

DLA-2936-1

OPENSUSE-SU-2018_2502-1

OPENSUSE-SU-2018_3519-1

SUSE-SU-2018:2469-1

SUSE-SU-2018:3440-1

Affected Products

Alt Linux

Suse

Libgit2

References · 71

• 🔥 https://github.com/Rogdham/CVE-2018-11235 · Exploit
• 🔥 https://github.com/CHYbeta/CVE-2018-11235-DEMO · Exploit
• 🔥 https://github.com/qweraqq/CVE-2018-11235-Git-Submodule-CE · Exploit
• https://github.com/libgit2/libgit2/commit/9844d38bed10e9ff17174434b3421b227ae710f3 · Patch
• https://github.com/libgit2/libgit2/releases/tag/v0.27.3 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-10888 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se81-bulletin-20230315SE81 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-05967 · Security Note
• https://security-tracker.debian.org/tracker/source-package/libgit2 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1352 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2018-10888 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2018-1992 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8098 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8099 · Security Note
• https://errata.altlinux.org/ALT-PU-2018-2706 · Vendor Advisory