tar-1.34

[Bruce Dubbs]

New minor version.

[Bruce Dubbs]

This is to inform you that GNU tar version 1.34 is available for download. This release includes the following bugfixes:

• Fix extraction over pipe
• Fix memory leak in read_header
• Fix extraction when . and .. are unreadable
• Gracefully handle duplicate symlinks when extracting
• Re-initialize supplementary groups when switching to user privileges

[Bruce Dubbs]

Fixed at revision 12134.

[Douglas R. Reno]

Retroactively promote due to CVE-2021-20193

Arch Linux Security Advisory ASA-202102-41
==========================================

Severity: Low
Date    : 2021-02-27
CVE-ID  : CVE-2021-20193
Package : tar
Type    : denial of service
Remote  : No
Link    : https://security.archlinux.org/AVG-1462

Summary
=======

The package tar before version 1.34-1 is vulnerable to denial of
service.

Resolution
==========

Upgrade to 1.34-1.

# pacman -Syu "tar>=1.34-1"

The problem has been fixed upstream in version 1.34.

Workaround
==========

None.

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

An issue was discovered in GNU Tar before version 1.34. There is a
memory leak in read_header() in list.c in the tar application.

Impact
======

A crafted tar archive can crash the application.

References
==========

https://bugzilla.redhat.com/show_bug.cgi?id=1917565
https://savannah.gnu.org/bugs/?59897
https://git.savannah.gnu.org/cgit/tar.git/commit/?id=d9d4435692150fa8ff68e1b1a473d187cc3fd777
https://security.archlinux.org/CVE-2021-20193