[ASA-202007-3] tcpreplay: information disclosure

[Morten Linderud]

Arch Linux Security Advisory ASA-202007-3
=========================================

Severity: Medium
Date    : 2020-07-31
CVE-ID  : CVE-2020-12740
Package : tcpreplay
Type    : information disclosure
Remote  : No
Link    : https://security.archlinux.org/AVG-1154

Summary
=======

The package tcpreplay before version 4.3.3-1 is vulnerable to
information disclosure.

Resolution
==========

Upgrade to 4.3.3-1.

# pacman -Syu "tcpreplay>=4.3.3-1"

The problem has been fixed upstream in version 4.3.3.

Workaround
==========

None.

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

tcprewrite in Tcpreplay through 4.3.2 has a heap-based buffer over-read
during a get_c operation. The issue is being triggered in the function
get_ipv6_next() at common/get.c.

Impact
======

A remote attacker is able to disclose information on the affected host
with a crafted pcap file.

References
==========

https://github.com/appneta/tcpreplay/issues/576
https://security.archlinux.org/CVE-2020-12740
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