70805 : feh src/utils.c feh_unique_filename() Predictable Filename Symlink Arbitrary File Overwrite
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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

Credit

CVSSv2 Score

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

Access_vector_0 Access_complexity_1 Authentication_2 Confidentiality_impact_0 Integrity_impact_1 Availability_impact_1

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