#VU33027 Input validation error - CVE-2012-6687

Vulnerability identifier: #VU33027

Vulnerability risk: Medium

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

CVE-ID: CVE-2012-6687

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

FastCGI (aka fcgi and libfcgi) 2.4.0 allows remote attackers to cause a denial of service (segmentation fault and crash) via a large number of connections.

Mitigation
Install update from vendor's website.

External links
https://advisories.mageia.org/MGASA-2015-0184.html
https://www.openwall.com/lists/oss-security/2015/02/06/4
https://www.openwall.com/lists/oss-security/2015/02/07/4
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=681591
https://bugs.launchpad.net/ubuntu/+source/libfcgi/+bug/933417
https://bugzilla.redhat.com/show_bug.cgi?id=1189958
https://exchange.xforce.ibmcloud.com/vulnerabilities/100696

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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.