GLSA 201903-05: Tar: Denial of Service
Severity: | normal |
Title: | Tar: Denial of Service |
Date: | 03/10/2019 |
Bugs: |
|
ID: | 201903-05 |
Synopsis
A vulnerability in Tar could led to a Denial of Service condition.Background
The Tar program provides the ability to create and manipulate tar archives.
Affected packages
Package | Vulnerable | Unaffected | Architecture(s) |
---|---|---|---|
app-arch/tar | < 1.30-r1 | >= 1.30-r1 | All supported architectures |
Description
The sparse_dump_region function in sparse.c file in Tar allows an infinite loop using the --sparse option.
Impact
A local attacker could cause a Denial of Service condition by modifying a file that is supposed to be archived by a different user’s process (e.g., a system backup running as root).
Workaround
There is no known workaround at this time.
Resolution
All Tar users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/tar-1.30-r1"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.