Description
Format string vulnerability in the vinagre_utils_show_error function (src/vinagre-utils.c) in Vinagre 0.5.x before 0.5.2 and 2.x before 2.24.2 might allow remote attackers to execute arbitrary code via format string specifiers in a crafted URI or VNC server response.
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 12 | vinagre | 0.5.1-2 | — |
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
- Vinagre < 2.24.2 - 'show_error()' Remote Format String (PoC) EDB-7401 · dos · Dec 9, 2008 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 7401 exploit
- FEDORA-2008-10932 vendor-advisory
- 20081209 CORE-2008-1127 - Vinagre show_error() format string vulnerability mailing-list
- 33041 third-party-advisory
- http://www.coresecurity.com/content/vinagre-format-string
- 33082 third-party-advisory
- MDVSA-2008:240 vendor-advisory
- ADV-2008-3362 vdb-entry
- 33046 third-party-advisory
- FEDORA-2008-10941 vendor-advisory
- USN-689-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=475070