CVE-2011-2684

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-10-23 · updated 2026-06-16
Weakness: CWE-59

Description

foo2zjs before 20110722dfsg-3ubuntu1 as packaged in Ubuntu, 20110722dfsg-1 as packaged in Debian unstable, and 20090908dfsg-5.1+squeeze0 as packaged in Debian squeeze create temporary files insecurely, which allows local users to write over arbitrary files via a symlink attack on /tmp/foo2zjs.

Affected products

Rkkda Foo2Zjs: 20090908dfsg-5.1+squeeze0, 20110722dfsg-1, 20110722dfsg-3ubuntu1

References

http://www.openwall.com/lists/oss-security/2011/07/06/10
http://www.openwall.com/lists/oss-security/2014/02/08/5
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=633870
https://bugs.launchpad.net/ubuntu/+source/foo2zjs/+bug/805370
https://security-tracker.debian.org/tracker/CVE-2011-2684/
http://www.openwall.com/lists/oss-security/2011/07/06/10
http://www.openwall.com/lists/oss-security/2014/02/08/5
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=633870
https://bugs.launchpad.net/ubuntu/+source/foo2zjs/+bug/805370
https://security-tracker.debian.org/tracker/CVE-2011-2684/

Get alerted when CVE-2011-2684 or the next vulnerability affects your stack