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[ GLSA 200412-11 ] Cscope: Insecure creation of temporary files
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GLSA
Bodhisattva
Bodhisattva


Joined: 25 Feb 2003
Posts: 3827
Location: Essen, Germany

PostPosted: Thu Dec 16, 2004 8:51 pm    Post subject: [ GLSA 200412-11 ] Cscope: Insecure creation of temporary fi Reply with quote

Gentoo Linux Security Advisory

Title: Cscope: Insecure creation of temporary files (GLSA 200412-11)
Severity: normal
Exploitable: local
Date: December 16, 2004
Bug(s): #71595
ID: 200412-11

Synopsis

Cscope is vulnerable to symlink attacks, potentially allowing a local user to overwrite arbitrary files.

Background

Cscope is a developer utility used to browse and manage source code.

Affected Packages

Package: dev-util/cscope
Vulnerable: < 15.5-r2
Unaffected: >= 15.5-r2
Architectures: All supported architectures


Description

Cscope creates temporary files in world-writable directories with predictable names.

Impact

A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When Cscope is executed, this would result in the file being overwritten with the rights of the user running the utility, which could be the root user.

Workaround

There is no known workaround at this time.

Resolution

All Cscope users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-util/cscope-15.5-r2"


References

CAN-2004-0996
BugTraq Advisory


Last edited by GLSA on Thu Mar 08, 2007 4:16 am; edited 3 times in total
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