MGASA-2019-0022 - Updated coreutils packages fix security vulnerabilities

Publication date: 08 Jan 2019
URL: https://advisories.mageia.org/MGASA-2019-0022.html
Type: security
Affected Mageia releases: 6
CVE: CVE-2017-18018,
     CVE-2018-17942

A flaw was found in GNU Coreutils through 8.29 in chown-core.c. The
functions chown and chgrp do not prevent replacement of a plain file
with a symlink during use of the POSIX "-R -L" options, which allows
local users to modify the ownership of arbitrary files by leveraging a
race condition (CVE-2017-18018).

A flaw was found in Gnulib before 2018-09-23. The convert_to_decimal
function in vasnprintf.c has a heap-based buffer overflow because memory
is not allocated for a trailing '\0' character during %f processing
(CVE-2018-17942).

References:
- https://bugs.mageia.org/show_bug.cgi?id=23825
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/JK2ISMPYUEU3JS3L7AVXEHWCI56INCJJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/4ZP6L5HXDOVKYTM5ELLYE64H75MT4LZR/
- https://bugs.mageia.org/show_bug.cgi?id=22495
- https://bugs.mageia.org/show_bug.cgi?id=23825
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18018
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17942

SRPMS:
- 6/core/coreutils-8.25-3.1.mga6