Arch Linux Security Advisory ASA-201604-9
========================================
Severity: Medium
Date    : 2016-04-17
CVE-ID  : CVE-2016-4008
Package : libtasn1
Type    : denial of service
Remote  : Yes
Link    : https://wiki.archlinux.org/title/CVE

Summary
======
The package libtasn1 before version 4.8-1 is vulnerable to denial of
service.

Resolution
=========
Upgrade to 4.8-1.

# pacman -Syu "libtasn1>=4.8-1"

The problem has been fixed upstream in version 4.8.

Workaround
=========
None.

Description
==========
The libtasn1 library, in its 4.7 version, can loop for a long time or
indefinitely when it is used to parse DER representations of X.509
certificates, leading to a denial of service. Some of these loops may in
addition increase heap or stack usage, leading to more issues.

Impact
=====
A remote attacker can cause an application using a vulnerable version of
libtasn1 to loop indefinitely by sending a crafted X.509 certificate,
causing a denial of service.

References
=========
https://access.redhat.com/security/cve/CVE-2016-4008
https://bugzilla.redhat.com/show_bug.cgi?id=1325965

ArchLinux: 201604-9: libtasn1: denial of service

April 17, 2016

Summary

The libtasn1 library, in its 4.7 version, can loop for a long time or indefinitely when it is used to parse DER representations of X.509 certificates, leading to a denial of service. Some of these loops may in addition increase heap or stack usage, leading to more issues.

Resolution

Upgrade to 4.8-1. # pacman -Syu "libtasn1>=4.8-1"
The problem has been fixed upstream in version 4.8.

References

https://access.redhat.com/security/cve/CVE-2016-4008 https://bugzilla.redhat.com/show_bug.cgi?id=1325965

Severity
Package : libtasn1
Type : denial of service
Remote : Yes
Link : https://wiki.archlinux.org/title/CVE

Workaround

None.

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