SB2013022401 - Remote code execution in OpenConnect VPN client
Published: February 24, 2013 Updated: May 25, 2020
Security Bulletin ID
SB2013022401
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Stack-based buffer overflow (CVE-ID: CVE-2012-6128)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within http.c file when processing a long (1) hostname, (2) path, or (3) cookie list in a response. A remote attacker can trick the victim to connect to a malicious VPN server, 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.
Remediation
Install update from vendor's website.
References
- http://git.infradead.org/users/dwmw2/openconnect.git/commitdiff/26f752c3dbf69227679fc6bebb4ae071aecec491
- http://lists.opensuse.org/opensuse-updates/2013-06/msg00115.html
- http://www.debian.org/security/2013/dsa-2623
- http://www.infradead.org/openconnect/changelog.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:108
- http://www.openwall.com/lists/oss-security/2013/02/12/7
- http://www.securityfocus.com/bid/57884
- https://exchange.xforce.ibmcloud.com/vulnerabilities/82058
- https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0060