CVE-2022-48337: OS Command Injection
First published: Mon Feb 20 2023(Updated: )
GNU Emacs through 28.2 allows attackers to execute commands via shell metacharacters in the name of a source-code file, because lib-src/etags.c uses the system C library function in its implementation of the etags program. For example, a victim may use the "etags -u *" command (suggested in the etags documentation) in a situation where the current working directory has contents that depend on untrusted input.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU Emacs | <=28.2 | |
| Debian Debian Linux | =11.0 | |
| debian/emacs | 1:27.1+1-3.1+deb11u5 1:28.2+1-15+deb12u3 1:29.4+1-3 |
Remedy
https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=01a4035c869b91c153af9a9132c87adb7669ea1c
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Reference Links
- https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=01a4035c869b91c153af9a9132c87adb7669ea1c
- https://debbugs.gnu.org/cgi/bugreport.cgi?bug=59817
- https://bugs.debian.org/1031888
- https://debbugs.gnu.org/61819
- http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=0fde314f6f6e6664cddab1b2f0fe20629cd39d14
- https://security-tracker.debian.org/tracker/CVE-2022-48337
- https://lists.debian.org/debian-lts-announce/2023/05/msg00008.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FLPQ4K6H2S5TY3L5UDN4K4B3L5RQJYQ6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6HDBUQNAH2WL4MHWCTUZLN7NGF7CHTK/
- https://www.debian.org/security/2023/dsa-5360
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2171992
- https://access.redhat.com/errata/RHSA-2023:2626
- https://access.redhat.com/errata/RHSA-2023:7083
- https://access.redhat.com/errata/RHSA-2024:1103
- https://access.redhat.com/errata/RHSA-2024:1408
- https://bugzilla.redhat.com/show_bug.cgi?id=2171987
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6HDBUQNAH2WL4MHWCTUZLN7NGF7CHTK/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FLPQ4K6H2S5TY3L5UDN4K4B3L5RQJYQ6/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-48337
- https://nvd.nist.gov/vuln/detail/CVE-2022-48337
- https://launchpad.net/bugs/cve/CVE-2022-48337
- https://ubuntu.com/security/CVE-2022-48337
Frequently Asked Questions
What is CVE-2022-48337?
CVE-2022-48337 is a vulnerability in GNU Emacs that allows attackers to execute commands via shell metacharacters in the name of a source-code file.
What software versions are affected by CVE-2022-48337?
GNU Emacs versions up to 28.2 and Debian Linux version 11.0 are affected by CVE-2022-48337.
How severe is CVE-2022-48337?
CVE-2022-48337 has a severity rating of 9.8 (Critical).
How can an attacker exploit CVE-2022-48337?
Attackers can exploit CVE-2022-48337 by using shell metacharacters in the name of a source-code file to execute commands.
Is there a fix available for CVE-2022-48337?
Yes, a fix is available. Users should update to the latest version of GNU Emacs or apply the recommended updates for Debian Linux.
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