Link Following Affecting kernel-bootwrapper package, versions <0:3.10.0-123.13.1.el7
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Test your applications- Snyk ID SNYK-RHEL7-KERNELBOOTWRAPPER-5016737
- published 26 Jul 2021
- disclosed 20 Jul 2014
Introduced: 20 Jul 2014
CVE-2014-5045 Open this link in a new tabHow to fix?
Upgrade RHEL:7 kernel-bootwrapper to version 0:3.10.0-123.13.1.el7 or higher.
This issue was patched in RHSA-2014:1971.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-bootwrapper package and not the kernel-bootwrapper package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
The mountpoint_last function in fs/namei.c in the Linux kernel before 3.15.8 does not properly maintain a certain reference count during attempts to use the umount system call in conjunction with a symlink, which allows local users to cause a denial of service (memory consumption or use-after-free) or possibly have unspecified other impact via the umount program.
References
- http://www.securityfocus.com/bid/68862
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=295dc39d941dc2ae53d5c170365af4c9d5c16212
- https://bugzilla.redhat.com/show_bug.cgi?id=1122472
- https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8
- https://access.redhat.com/security/cve/CVE-2014-5045
- http://www.openwall.com/lists/oss-security/2014/07/24/2
- http://rhn.redhat.com/errata/RHSA-2015-0062.html
- https://access.redhat.com/errata/RHSA-2014:1971
- http://secunia.com/advisories/60353
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=295dc39d941dc2ae53d5c170365af4c9d5c16212