Debian Security Advisory
DSA-4607-1 openconnect -- security update
- Date Reported:
- 20 Jan 2020
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 940871.
In Mitre's CVE dictionary: CVE-2019-16239.
- More information:
Lukas Kupczyk reported a vulnerability in the handling of chunked HTTP in openconnect, an open client for Cisco AnyConnect, Pulse and GlobalProtect VPN. A malicious HTTP server (after having accepted its identity certificate), can provide bogus chunk lengths for chunked HTTP encoding and cause a heap-based buffer overflow.
For the oldstable distribution (stretch), this problem has been fixed in version 7.08-1+deb9u1.
For the stable distribution (buster), this problem has been fixed in version 8.02-1+deb10u1.
We recommend that you upgrade your openconnect packages.
For the detailed security status of openconnect please refer to its security tracker page at: https://security-tracker.debian.org/tracker/openconnect