PT-2017-9700 · Libgit2+3 · Libgit2+3

Gaa-Cifasis · Published 2016-11-08 · Updated 2024-06-15 · CVE-2016-8569

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions libgit2 versions prior to 0.24.3

Description The issue allows remote attackers to cause a denial of service, specifically a NULL pointer dereference, by utilizing a cat-file command with a crafted object file. This is related to the git oid nfmt function in commit.c.

Recommendations For versions prior to 0.24.3, update to version 0.24.3 or later to resolve the issue. As a temporary workaround, consider restricting access to crafted object files to minimize the risk of exploitation.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2016-2254

CVE-2016-8569

MGASA-2017-0319

OPENSUSE-SU-2017:0195-1

OPENSUSE-SU-2024:10249-1

SUSE-SU-2016:2969-1

USN-4798-1

Affected Products

Alt Linux

Suse

Ubuntu

Libgit2

References · 36

• https://github.com/libgit2/libgit2/releases/tag/v0.24.3 · Patch
• https://github.com/libgit2/libgit2/issues/3937 · Patch
• https://ubuntu.com/security/CVE-2016-8568 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2969-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-8569 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2017:0195-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:10249-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-8569 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-8569 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVUEIG6EESZB6BRU2IE3F5NRUEHMAEKC · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2016-8569 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/4E77DG5KGQ7L34U75QY7O6NIPKZNQHQJ · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4798-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-8569 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3JBSNJAXP7JA3TGE2NPNRTD77JXFG4E · Vendor Advisory