CVE-2008-3521

Race condition in the jas_stream_tmpfile function in libjasper/base/jas_stream.c in JasPer 1.900.1 allows local users to cause a denial of service (program exit) by creating the appropriate tmp.XXXXXXXXXX temporary file, which causes Jasper to exit. NOTE: this was originally reported as a symlink issue, but this was incorrect. NOTE: some vendors dispute the severity of this issue, but it satisfies CVEs requirements for inclusion.

Weakness

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Affected Software

Potential Mitigations

• Follow the principle of least privilege when assigning access rights to entities in a software system.
• Denying access to a file can prevent an attacker from replacing that file with a link to a sensitive file. Ensure good compartmentalization in the system to provide protected areas that can be trusted.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/132.html
• https://cwe.mitre.org/data/definitions/17.html
• https://cwe.mitre.org/data/definitions/35.html
• https://cwe.mitre.org/data/definitions/76.html

References

• http://bugs.gentoo.org/attachment.cgi?id=163282\u0026action=view
• http://bugs.gentoo.org/show_bug.cgi?id=222819
• http://secunia.com/advisories/34391
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:142
• http://www.mandriva.com/security/advisories?name=MDVSA-2009:164
• http://www.securityfocus.com/bid/31470
• http://www.ubuntu.com/usn/USN-742-1
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2008-3521
• https://exchange.xforce.ibmcloud.com/vulnerabilities/45622