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Vulnerability record · CVE-2016-8569 · published 3 February 2017

CVE-2016-8569: Libgit2 project libgit2 null pointer dereference vulnerability

Libgit2 Project · Libgit2

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.

5.5 CVSS 3.0 Medium EPSS 1.9% · top 20.2% CWE-476 · NULL pointer dereference
5.5CVSS 3.0 base score, v2 4.3
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
24References
17 Jun 2026Last modified by NVD

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.

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-updates/2016-12/msg00075.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00103.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00110.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00114.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/08/7 Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/93465 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1383211 Issue Tracking
https://github.com/libgit2/libgit2/issues/3937 Issue TrackingPatchThird Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.24.3 Issue TrackingPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4E77DG5KGQ7L34U75QY7O6N
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3JBSNJAXP7JA3TGE2NPNRT
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVUEIG6EESZB6BRU2IE3F5N
http://lists.opensuse.org/opensuse-updates/2016-12/msg00075.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00103.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00110.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2017-01/msg00114.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/08/7 Mailing ListPatchThird Party Advisory
http://www.securityfocus.com/bid/93465 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1383211 Issue Tracking
https://github.com/libgit2/libgit2/issues/3937 Issue TrackingPatchThird Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.24.3 Issue TrackingPatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4E77DG5KGQ7L34U75QY7O6N
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3JBSNJAXP7JA3TGE2NPNRT
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVUEIG6EESZB6BRU2IE3F5N

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Source: NIST National Vulnerability Database (record CVE-2016-8569), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.