#VU28217 Stack-based buffer overflow in OpenConnect VPN Client - CVE-2012-6128
Published: May 25, 2020
Vulnerability identifier: #VU28217
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-6128
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
OpenConnect VPN Client
OpenConnect VPN Client
Software vendor:
OpenConnect
OpenConnect
Description
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.
External links
- 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