[arch-security] [ASA-201504-20] tcpdump: denial of service

[Levente Polyak]

Arch Linux Security Advisory ASA-201504-20
==========================================

Severity: Low
Date    : 2015-04-20
CVE-ID  : CVE-2015-3138
Package : tcpdump
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package tcpdump before version 4.7.3-2 is vulnerable to denial of
service.

Resolution
==========

Upgrade to 4.7.3-2.

# pacman -Syu "tcpdump>=4.7.3-2"

The problem has been fixed upstream but no release is available yet.

Workaround
==========

None.

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

A vulnerability was discovered in print-wb.c that is leading to a
segmentation fault triggered through feeding into tcpdump a crafted
packet, either from a live network interface or from a .pcap file.

Impact
======

A remote attacker is able to send specially crafted packets to cause a
segmentation fault leading to denial of service.

References
==========

https://access.redhat.com/security/cve/CVE-2015-3138
https://github.com/the-tcpdump-group/tcpdump/issues/446

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