CVE-2007-3645 Null dereference in n/a

Medium 4.3 Published 15 Jul 2007 Updated 7 Aug 2024

A NULL pointer dereference in libarchive allows remote attackers to cause a denial of service via crafted PAX or TAR archives.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2007-3645?

CVE-2007-3645 is a medium-severity vulnerability in n/a, published on 15 Jul 2007. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

archive_read_support_format_tar.c in libarchive before 2.2.4 allows user-assisted remote attackers to cause a denial of service (crash) via (1) an end-of-file condition within a tar header that follows a pax extension header or (2) a malformed pax extension header in an (a) PAX or a (b) TAR archive, which results in a NULL pointer dereference, a different issue than CVE-2007-3644.

Which versions are affected by CVE-2007-3645?

It affects 1 product.

Products include Freebsd Libarchive.

How do I fix CVE-2007-3645?

Upgrade to a fixed version.

Is CVE-2007-3645 being exploited?

There is no known exploitation of CVE-2007-3645 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2007-3645, GHSA-wc53-cvcx-2wqx.