Heap-based buffer overflow in OpenConnect VPN Client - CVE-2013-7098
Published: May 25, 2020
Vulnerability identifier: #VU28216
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2013-7098
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenConnect
Affected software:
OpenConnect VPN Client
OpenConnect VPN Client
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to a boundary error when processing connection data with increased MTU on reconnection. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and perform a denial of service (DoS) attack.
How to mitigate CVE-2013-7098
Install updates from vendor's website.