SB2017020304 - Out-of-bounds read in libgit2.github.com libgit2
Published: February 3, 2017 Updated: July 28, 2020
Security Bulletin ID
SB2017020304
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2016-8568)
The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.
The git_commit_message function in oid.c in libgit2 before 0.24.3 allows remote attackers to cause a denial of service (out-of-bounds read) via a cat-file command with a crafted object file.
Remediation
Install update from vendor's website.
References
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00075.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00103.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00110.html
- http://lists.opensuse.org/opensuse-updates/2017-01/msg00114.html
- http://www.openwall.com/lists/oss-security/2016/10/08/7
- http://www.securityfocus.com/bid/93466
- https://bugzilla.redhat.com/show_bug.cgi?id=1383211
- https://github.com/libgit2/libgit2/issues/3936
- https://github.com/libgit2/libgit2/releases/tag/v0.24.3
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4E77DG5KGQ7L34U75QY7O6NIPKZNQHQJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X3JBSNJAXP7JA3TGE2NPNRTD77JXFG4E/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XVUEIG6EESZB6BRU2IE3F5NRUEHMAEKC/