#VU43311 Format string error in mcrypt - CVE-2012-4426

Vulnerability identifier: #VU43311

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-4426

CWE-ID: CWE-134

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
mcrypt
Other software / Other software solutions

Vendor: imipak

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Multiple format string vulnerabilities in mcrypt 2.6.8 and earlier might allow user-assisted remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving (1) errors.c or (2) mcrypt.c.

Mitigation
Install update from vendor's website.

Vulnerable software versions

mcrypt: 2.6.4 - 2.6.7

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External links
https://www.openwall.com/lists/oss-security/2012/09/06/8
https://www.openwall.com/lists/oss-security/2012/09/06/9
https://www.openwall.com/lists/oss-security/2012/09/10/5
https://www.openwall.com/lists/oss-security/2012/09/13/22
https://www.securityfocus.com/bid/55557

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.