Description
WEB-DAV Linux File System (davfs2) 1.4.6 and 1.4.7 allow local users to gain privileges via unknown attack vectors in (1) kernel_interface.c and (2) mount_davfs.c, related to the "system" function.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | davfs2 | 1.4.7-3 | — |
| Debian 13 | davfs2 | 1.4.7-3 | — |
| Debian 12 | davfs2 | 1.4.7-3 | — |
| Debian 7 | davfs2 | 1.4.6-1.1+deb7u1 | DSA-2765-1 |
| Debian 6.0 | davfs2 | 1.4.6-1.1+squeeze1 | DSA-2765-1 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- davfs2 1.4.6/1.4.7 - Local Privilege Escalation EDB-28806 · local · Oct 8, 2013 · verified
GitHub 1 repository
-
notclement/Automatic-davfs2-1.4.6-1.4.7-Local-Privilege-Escalation ★ 2 · Sep 10, 2020
Automatically exploit systems with vulnerable davfs2 (CVE-2013-4362)
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- DSA-2765-1 davfs2 - privilege escalation Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-2765 vendor-advisory
- 97417 vdb-entry
- 97416 vdb-entry
- GLSA-201612-02 vendor-advisory
- [oss-security] 20130918 Re: CVE request: davfs2 - Unsecure use of system() mailing-list
- http://savannah.nongnu.org/bugs/?40034
- 62445 vdb-entry