Stack-based buffer overflow in Asterisk

1) Stack-based buffer overflow

EUVDB-ID: #VU32803

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-2012-1183

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the milliwatt_generate function in the Miliwatt application when processing a large number of samples in an audio packet. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Asterisk Open Source: 1.4.0 _ - 11.4.0

CPE2.3

• cpe:2.3:a:digium_linux_support_services:asterisk:1.4.43:*:*:*:*:*:*:*
• cpe:2.3:a:digium_linux_support_services:asterisk:11.4.0:*:*:*:*:*:*:*

External links

https://archives.neohapsis.com/archives/bugtraq/2012-03/0069.html
https://downloads.asterisk.org/pub/security/AST-2012-002.pdf
https://downloads.asterisk.org/pub/security/AST-2012-002-1.8.diff
https://osvdb.org/80125
https://secunia.com/advisories/48417
https://secunia.com/advisories/48941
https://securitytracker.com/id?1026812
https://www.asterisk.org/node/51797
https://www.debian.org/security/2012/dsa-2460
https://www.openwall.com/lists/oss-security/2012/03/16/10
https://www.openwall.com/lists/oss-security/2012/03/16/17
https://www.securityfocus.com/bid/52523
https://exchange.xforce.ibmcloud.com/vulnerabilities/74082

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.