70805 : feh src/utils.c feh_unique_filename() Predictable Filename Symlink Arbitrary File Overwrite
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
3	1027	over 2 years ago	almost 2 years ago	4 times	100%

Timeline

Disclosure Date
2011-02-07

Description

feh contains a flaw that may allow a malicious local user to overwrite arbitrary files on the system. The issue is due to the 'feh_unique_filename()' function in 'src/utls.c' creating temporary files insecurely, specifically by generating predictable filenames. It is possible for a local attacker to use a symlink attack to cause the program to unexpectedly write to, or overwrite an attacker specified file.

Classification

Location: Local Access Required
Attack Type: Race Condition
Impact: Loss of Integrity
Solution: Solution Unknown
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

OSVDB is not aware of a solution for this vulnerability.

Products

Daniel Friesel

feh

1.11.1

References

CVE ID: 2011-1031 (see also: NVD)
Secunia Advisory ID: 43221 46356
Vendor Specific Solution URL: http://git.finalrewind.org/feh/patch/?id=ae56ce24b10767800b1715e7e68b41c7d3571b4c
Vendor Specific News/Changelog Entry: http://www.gentoo.org/security/en/glsa/glsa-201110-08.xml
https://bugs.launchpad.net/ubuntu/+source/feh/+bug/607328

Credit

segooon

CVSSv2 Score

CVSSv2 Base Score = 3.3
Source: nvd.nist.gov | Generated: 2011-02-15 | Disagree?

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