Joined: 12 May 2004
|Posted: Sun Nov 20, 2011 11:26 pm Post subject: [ GLSA 201111-11 ] GNU Tar: User-assisted execution of arbit
|Gentoo Linux Security Advisory
Title: GNU Tar: User-assisted execution of arbitrary code (GLSA 201111-11)
Date: November 20, 2011
A buffer overflow flaw in GNU Tar could result in execution of
arbitrary code or a Denial of Service.
GNU Tar is a utility to create archives as well as add and extract files
Vulnerable: < 1.23
Unaffected: >= 1.23
Architectures: All supported architectures
GNU Tar is vulnerable to a boundary error in the rmt_read__ function in
lib/rtapelib.c, which could cause a heap-based buffer overflow.
A remote attacker could entice the user to load a specially crafted
archive, possibly resulting in the execution of arbitrary code or a
Denial of Service.
There is no known workaround at this time.
All GNU Tar users should upgrade to the latest version:
NOTE: This is a legacy GLSA. Updates for all affected architectures are
|# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/tar-1.23"
available since July 18, 2010. It is likely that your system is already
no longer affected by this issue.