VDB-98497 · CVE-2016-10129 · BID 95339

libgit2 up to 0.24.5/0.25.0 Git Smart Protocol null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

A vulnerability classified as problematic was found in libgit2 up to 0.24.5/0.25.0. Affected by this vulnerability is an unknown function of the component Git Smart Protocol Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

The Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to cause a denial of service (NULL pointer dereference) via an empty packet line.

The bug was discovered 03/24/2017. The weakness was disclosed 03/24/2017 (oss-sec). The advisory is shared at openwall.com. This vulnerability is known as CVE-2016-10129 since 01/10/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 97282 (openSUSE Security Update : libgit2 (openSUSE-2017-262)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276381 (Fedora Security Update for libgit2 (FEDORA-2017-403346d884)).

Upgrading to version 0.24.6 or 0.25.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (97282).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 97282
Nessus Name: openSUSE Security Update : libgit2 (openSUSE-2017-262)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for libgit2 FEDORA-2017-403346d884
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libgit2 0.24.6/0.25.1
Patch: github.com

Timelineinfo

01/10/2017 🔍
01/10/2017 +0 days 🔍
02/16/2017 +37 days 🔍
02/21/2017 +5 days 🔍
03/24/2017 +31 days 🔍
03/24/2017 +0 days 🔍
03/24/2017 +0 days 🔍
03/24/2017 +0 days 🔍
11/15/2022 +2062 days 🔍

Sourcesinfo

Advisory: 2fdef641fd0dd2828bd948234ae86de75221a11a
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10129 (🔍)
SecurityFocus: 95339 - libgit2 Multiple NULL Pointer Dereference Remote Code Execution Vulnerability
OSVDB: - CVE-2016-10129 - Git - libgit2 - Denial of Service Issue

Entryinfo

Created: 03/24/2017 06:52 PM
Updated: 11/15/2022 08:42 AM
Changes: 03/24/2017 06:52 PM (73), 09/13/2020 08:35 PM (5), 11/15/2022 08:42 AM (5)
Complete: 🔍
Cache ID: 44:801:40

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