#VU33088 Buffer overflow - CVE-2014-5461

Vulnerability identifier: #VU33088

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-2014-5461

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Description

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

Buffer overflow in the vararg functions in ldo.c in Lua 5.1 through 5.2.x before 5.2.3 allows context-dependent attackers to cause a denial of service (crash) via a small number of arguments to a function with a large number of fixed arguments.

Mitigation
Install update from vendor's website.

External links
https://advisories.mageia.org/MGASA-2014-0414.html
https://lists.opensuse.org/opensuse-updates/2014-09/msg00030.html
https://secunia.com/advisories/59890
https://secunia.com/advisories/60869
https://secunia.com/advisories/61411
https://www.debian.org/security/2014/dsa-3015
https://www.debian.org/security/2014/dsa-3016
https://www.lua.org/bugs.html#5.2.2-1
https://www.mandriva.com/security/advisories?name=MDVSA-2015:144
https://www.openwall.com/lists/oss-security/2014/08/21/1
https://www.openwall.com/lists/oss-security/2014/08/21/4
https://www.openwall.com/lists/oss-security/2014/08/27/2
https://www.securityfocus.com/bid/69342
https://www.ubuntu.com/usn/USN-2338-1
https://security.gentoo.org/glsa/201701-53

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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.