Vulnerability identifier: #VU35127

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-6125

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Chicken Scheme
Universal components / Libraries / Software for developers

Vendor: call-cc.org

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Chicken before 4.8.0 is susceptible to algorithmic complexity attacks related to hash table collisions.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Chicken Scheme: 4.0.0 - 4.7.0

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External links
http://www.openwall.com/lists/oss-security/2013/02/08/2
http://access.redhat.com/security/cve/cve-2012-6125
http://lists.nongnu.org/archive/html/chicken-hackers/2012-01/msg00002.html
http://lists.nongnu.org/archive/html/chicken-hackers/2012-01/msg00020.html
http://security-tracker.debian.org/tracker/CVE-2012-6125

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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.