CVE-2019-13638: Command Injection
First published: Fri Jul 26 2019(Updated: )
A vulnerability was found in GNU patch through 2.7.6 is vulnerable to OS shell command injection that can be exploited by opening a crafted patch file that contains an ed style diff payload with shell metacharacters. The ed editor does not need to be present on the vulnerable system. This is different from <a href="https://access.redhat.com/security/cve/CVE-2018-1000156">CVE-2018-1000156</a>. Reference: <a href="https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0">https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU patch | =2.7.6 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| debian/patch | 2.7.6-7 |
Remedy
https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0
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Reference Links
- http://packetstormsecurity.com/files/154124/GNU-patch-Command-Injection-Directory-Traversal.html
- https://access.redhat.com/errata/RHSA-2019:2798
- https://access.redhat.com/errata/RHSA-2019:2964
- https://access.redhat.com/errata/RHSA-2019:3757
- https://access.redhat.com/errata/RHSA-2019:3758
- https://access.redhat.com/errata/RHSA-2019:4061
- https://git.savannah.gnu.org/cgit/patch.git/commit/?id=3fcd042d26d70856e826a42b5f93dc4854d80bf0
- https://github.com/irsl/gnu-patch-vulnerabilities
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SVWWGISFWACROJJPVJJL4UBLVZ7LPOLT/
- https://seclists.org/bugtraq/2019/Aug/29
- https://seclists.org/bugtraq/2019/Jul/54
- https://security-tracker.debian.org/tracker/CVE-2019-13638
- https://security.gentoo.org/glsa/201908-22
- https://security.netapp.com/advisory/ntap-20190828-0001/
- https://www.debian.org/security/2019/dsa-4489
- https://launchpad.net/bugs/cve/CVE-2019-13638
- https://access.redhat.com/security/cve/CVE-2018-1000156
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1733917
- https://access.redhat.com/security/cve/cve-2019-13638
- https://bugzilla.redhat.com/show_bug.cgi?id=1733916
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SVWWGISFWACROJJPVJJL4UBLVZ7LPOLT/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13638
- https://nvd.nist.gov/vuln/detail/CVE-2019-13638
- https://ubuntu.com/security/CVE-2019-13638
Frequently Asked Questions
What is CVE-2019-13638?
CVE-2019-13638 is a vulnerability in the GNU patch tool that allows for OS shell command injection.
How severe is CVE-2019-13638?
CVE-2019-13638 has a severity score of 7.8, which is considered critical.
What software is affected by CVE-2019-13638?
The GNU patch tool versions 2.7.6 and below are affected by CVE-2019-13638.
How can CVE-2019-13638 be exploited?
CVE-2019-13638 can be exploited by opening a crafted patch file that contains an ed style diff payload with shell metacharacters.
Are there any patches available for CVE-2019-13638?
Yes, patches are available to address the vulnerability. Please refer to the official references for remediation information.
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