|
libarchive pax Extension Header Denial of Service and Buffer Overflow
|
|
Secunia Advisory:
|
SA26050
|
|
|
Release Date:
|
2007-07-13
|
|
Last Update:
|
2008-03-21
|
|
Popularity:
|
7,499 views
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
DoS
System access
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | libarchive 1.x
libarchive 2.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
| CVE reference: | CVE-2007-3641
CVE-2007-3644
CVE-2007-3645
|
|
Description:
Some vulnerabilities have been reported in libarchive, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise an application using the library.
The vulnerabilities are caused due to a NULL pointer dereference, an infinite loop, and a buffer overflow when processing certain malformed pax extension headers. These can be exploited to crash an application, cause a high CPU load or potentially execute arbitrary code by tricking a user or automated system to process a specially crafted archive file with an application using the library.
The vulnerabilities are reported in versions prior to 2.2.4.
Solution:
Update to version 2.2.4.
http://people.freebsd.org/~kientzle/libarchive/
Provided and/or discovered by:
The FreeBSD advisory credits CPNI, CERT-FI, Tim Kientzle, and Colin Percival.
Changelog:
2008-03-21: Added link to US-CERT.
Original Advisory:
http://security.freebsd.org/advisories/FreeBSD-SA-07:05.libarchive.asc
Other References:
US-CERT VU#970849:
http://www.kb.cert.org/vuls/id/970849
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
