GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Sun Mar 10, 2019 10:26 pm Post subject: [ GLSA 201903-05 ] Tar |
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Gentoo Linux Security Advisory
Title: Tar: Denial of Service (GLSA 201903-05)
Severity: normal
Exploitable: local
Date: 2019-03-10
Bug(s): #674210
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: app-arch/tar
Vulnerable: < 1.30-r1
Unaffected: >= 1.30-r1
Architectures: 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: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/tar-1.30-r1"
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References
CVE-2018-20482 |
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