[arch-security] [ASA-201501-11] tinyproxy: denial of service

[Levente Polyak]

Arch Linux Security Advisory ASA-201501-11
==========================================

Severity: Medium
Date    : 2015-01-19
CVE-ID  : CVE-2012-3505
Package : tinyproxy
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package tinyproxy before version 1.8.4-1 is vulnerable to denial of
service.

Resolution
==========

Upgrade to 1.8.4-1.

# pacman -Syu "tinyproxy>=1.8.4-1"

The problem has been fixed upstream in version 1.8.4.

Workaround
==========

None.

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

It was discovered that a remote attacker is able to cause a denial of
service (CPU and memory consumption) via (1) a large number of headers
or (2) a large number of forged headers that predictably trigger hash
collisions.

Impact
======

A remote attacker is able to use specially crafted headers to
predictably cause CPU and memory consumption leading to denial of service.

References
==========

https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-3505
https://bugzilla.banu.com/show_bug.cgi?id=110
https://bugs.archlinux.org/task/38400

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