Mageia: 2019-0022 moderate: Coreutils Race Condition Exploitation
mageia
January 8, 2019
A flaw was found in GNU Coreutils through 8.29 in chown-core.c
Summary
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://www.cve.org/CVERecord?id=CVE-2017-18018
- https://www.cve.org/CVERecord?id=CVE-2018-17942
Topics Covered
Resolution
SRPMS
- 6/core/coreutils-8.25-3.1.mga6
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Publication date: 08 Jan 2019
URL: https://advisories.mageia.org/MGASA-2019-0022.html
Type: security
CVE: CVE-2017-18018,
CVE-2018-17942
Topics Covered
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