CVE-2016-10129

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.

Published: 2017-03-24 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-10129 is rated Moderate Risk (61.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.61%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-10129

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 3.21% 3.61% +0.40%
2 2026-05-30 4.76% 3.21% -1.55%
3 2025-03-30 4.76%

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-10129

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
10.0 2.9 [email protected]

Weakness enumeration for CVE-2016-10129

OS Trackers for CVE-2016-10129

vendor priority summary link
alpine CVE-2016-10129: 4 source package rows (libgit2, libgit2-1.0, libgit2-1.1, libgit2-1.5); 12 state rows across 9 repos (3.10-main, 3.11-main, 3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 12, open 0. https://security.alpinelinux.org/vuln/CVE-2016-10129
debian not yet assigned CVE-2016-10129 not yet assigned priority: Debian including 2 source packages (cargo, libgit2), 7 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 7. https://security-tracker.debian.org/tracker/CVE-2016-10129
suse medium CVE-2016-10129 severity moderate: SUSE including 24 source package names (libgit2-1_3-1.3.0-150400.1.6, libgit2-1_3-1.3.0-150400.3.6.1, …), 30 product×package rows across 17 product lines (SUSE Linux Enterprise Module for Development Tools 15, SUSE Linux Enterprise Module for Development Tools 15 SP1, … (17 product lines)): Fixed 30. https://www.suse.com/security/cve/CVE-2016-10129/
ubuntu medium CVE-2016-10129 medium priority: Ubuntu including 1 source packages (libgit2), 23 status rows across 23 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, questing, trusty, upstream, xenial, yakkety, zesty): not-affected 16, ignored 3, needed 2, DNE 1, released 1. https://ubuntu.com/security/CVE-2016-10129

Affected software / configurations for CVE-2016-10129

Vendor Product Version Raw CPE
libgit2_project libgit2 <= 0.24.5 cpe:2.3:a:libgit2_project:libgit2:*:*:*:*:*:*:*:*
libgit2_project libgit2 0.25.0 cpe:2.3:a:libgit2_project:libgit2:0.25.0:*:*:*:*:*:*:*
libgit2_project libgit2 0.25.0 cpe:2.3:a:libgit2_project:libgit2:0.25.0:rc1:*:*:*:*:*:*
libgit2_project libgit2 0.25.0 cpe:2.3:a:libgit2_project:libgit2:0.25.0:rc2:*:*:*:*:*:*

References for CVE-2016-10129

URL Tags
http://lists.opensuse.org/opensuse-updates/2017-02/msg00030.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-02/msg00036.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-02/msg00072.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/10/5 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/01/11/6 Mailing List Patch Third Party Advisory
http://www.securityfocus.com/bid/95339
https://github.com/libgit2/libgit2/commit/2fdef641fd0dd2828bd948234ae86de75221a11a Issue Tracking Patch Third Party Advisory
https://github.com/libgit2/libgit2/commit/84d30d569ada986f3eef527cbdb932643c2dd037 Issue Tracking Patch Third Party Advisory
https://libgit2.github.com/security/ Patch Vendor Advisory
cvelogic Threat Intelligence