ASA-201901-1 log generated external raw
[ASA-201901-1] tar: denial of service |
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Arch Linux Security Advisory ASA-201901-1
=========================================
Severity: Low
Date : 2019-01-08
CVE-ID : CVE-2018-20482
Package : tar
Type : denial of service
Remote : No
Link : https://security.archlinux.org/AVG-841
Summary
=======
The package tar before version 1.31-1 is vulnerable to denial of
service.
Resolution
==========
Upgrade to 1.31-1.
# pacman -Syu "tar>=1.31-1"
The problem has been fixed upstream in version 1.31.
Workaround
==========
None.
Description
===========
A denial of service issue has been found in GNU Tar versions up to and
including 1.30. When creating archives with the --sparse option, tar
would loop endlessly if a sparse file had been truncated while being
archived.
Impact
======
An attacker might be able to cause a denial of service via an archive
created with the --sparse option.
References
==========
https://lists.gnu.org/archive/html/bug-tar/2018-12/msg00023.html
https://git.savannah.gnu.org/cgit/tar.git/commit/?id=c15c42c
https://utcc.utoronto.ca/~cks/space/blog/sysadmin/TarFindingTruncateBug
https://security.archlinux.org/CVE-2018-20482
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