Directory Traversal Affecting libgit2-26 package, versions <0.26.6-3.5.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES150-LIBGIT226-2761710
- published14 Apr 2022
- disclosed21 Aug 2018
Introduced: 21 Aug 2018
CVE-2018-11235 (opens in a new tab)How to fix?
Upgrade SLES:15.0 libgit2-26 to version 0.26.6-3.5.2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libgit2-26 package and not the libgit2-26 package as distributed by SLES.
See How to fix? for SLES:15.0 relevant fixed versions and status.
In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution can occur. With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs "git clone --recurse-submodules" because submodule "names" are obtained from this file, and then appended to $GIT_DIR/modules, leading to directory traversal with "../" in a name. Finally, post-checkout hooks from a submodule are executed, bypassing the intended design in which hooks are not obtained from a remote server.
References
- https://www.suse.com/security/cve/CVE-2018-11235.html
- https://bugzilla.suse.com/1095219
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00003.html
- http://www.securityfocus.com/bid/104345
- http://www.securitytracker.com/id/1040991
- https://access.redhat.com/errata/RHSA-2018:1957
- https://access.redhat.com/errata/RHSA-2018:2147
- https://blogs.msdn.microsoft.com/devops/2018/05/29/announcing-the-may-2018-git-security-vulnerability/
- https://marc.info/?l=git&m=152761328506724&w=2
- https://security.gentoo.org/glsa/201805-13
- https://usn.ubuntu.com/3671-1/
- https://www.debian.org/security/2018/dsa-4212
- https://www.exploit-db.com/exploits/44822/
- https://www.exploit-db.com/exploits/45631
- https://github.com/Rogdham/CVE-2018-11235