CVE-2016-8569
The git_oid_nfmt function in commit.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (NULL pointer dereference) via a cat-file command with a crafted object file.
02 Description
The git_oid_nfmt function in commit.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (NULL pointer dereference) via a cat-file command with a crafted object file.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.87% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 79.3% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-02-03 15:00Z9 YR AGO
- Last updated
- 2024-08-06 02:27Z2 YR AGO
- Reserved
- 2016-10-08
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.1
- Document digest
- 0450139fb395d67c90de80321b8705f48f6e6bff26de3d0f1bc360f349ea477e
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1383211
- lists.fedoraproject.orgFEDORA-2016-616a35205bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3JBSNJAXP7JA3TGE2NPNRTD77JXFG4E/
- www.securityfocus.com93465http://www.securityfocus.com/bid/93465
- www.openwall.com[oss-security] 20161008 Re: CVE request: invalid memory accesses parsing object files in libgit2http://www.openwall.com/lists/oss-security/2016/10/08/7
- github.comhttps://github.com/libgit2/libgit2/issues/3937
- github.comhttps://github.com/libgit2/libgit2/releases/tag/v0.24.3
- lists.opensuse.orgopenSUSE-SU-2016:3097http://lists.opensuse.org/opensuse-updates/2016-12/msg00075.html
- lists.fedoraproject.orgFEDORA-2016-505d7fe198https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVUEIG6EESZB6BRU2IE3F5NRUEHMAEKC/
- lists.opensuse.orgopenSUSE-SU-2017:0208http://lists.opensuse.org/opensuse-updates/2017-01/msg00114.html
- lists.opensuse.orgopenSUSE-SU-2017:0195http://lists.opensuse.org/opensuse-updates/2017-01/msg00110.html
- lists.opensuse.orgopenSUSE-SU-2017:0184http://lists.opensuse.org/opensuse-updates/2017-01/msg00103.html
- lists.fedoraproject.orgFEDORA-2016-bc51f4636fhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4E77DG5KGQ7L34U75QY7O6NIPKZNQHQJ/
07 Fixed in
Arch Linux
- libgit2 Fixed in 1:0.24.3-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- cargo Fixed in 0.17.0-1
- libgit2 Fixed in 0.24.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libgit2 Fixed in 0.24.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libgit2 Fixed in 0.24.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- libgit2 Fixed in 0.19.0-2ubuntu0.4+esm1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- libgit2 Fixed in 0.24.1-2ubuntu0.2+esm1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.