Arch Linux alert ASA-202005-11 (openconnect)

From:
             
 
Morten Linderud <foxboron@archlinux.org> 
To:
             
 
arch-security@archlinux.org 
Subject:
             
 
[ASA-202005-11] openconnect: arbitrary code execution 
Date:
             
 
Sat, 23 May 2020 13:36:14 +0200
Message-ID:
             
 
<20200523113614.auzc37h6t63nk34o@anathema>
Arch Linux Security Advisory ASA-202005-11
==========================================

Severity: Low
Date    : 2020-05-19
CVE-ID  : CVE-2020-12823
Package : openconnect
Type    : arbitrary code execution
Remote  : No
Link    : https://security.archlinux.org/AVG-1157

Summary
=======

The package openconnect before version 1:8.10-1 is vulnerable to
arbitrary code execution.

Resolution
==========

Upgrade to 1:8.10-1.

# pacman -Syu "openconnect>=1:8.10-1"

The problem has been fixed upstream in version 8.10.

Workaround
==========

None.

Description
===========

OpenConnect 8.09 has a buffer overflow in get_cert_name in gnutls.c,
causing a denial of service (application crash) or possibly unspecified
other impact, via crafted data in a local certificate.

Impact
======

An attacker can cause the application to crash, or possibly execute
arbitrary code, by tricking a user into using a specially crafted
certificate.

References
==========

https://gitlab.com/openconnect/openconnect/-/merge_reques...
https://security.archlinux.org/CVE-2020-12823