PRIOn knowledge basePRION:CVE-2014-5045Design/Logic Flaw
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| linux_kernel | lt | 3.15.8 | |
| enterprise_linux_eus | eq | 6.5 | |
| enterprise_linux_server_aus | eq | 6.5 | |
| enterprise_linux_server_tus | eq | 6.5 |
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=295dc39d941dc2ae53d5c170365af4c9d5c16212
rhn.redhat.com/errata/RHSA-2015-0062.html
secunia.com/advisories/60353
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8
www.openwall.com/lists/oss-security/2014/07/24/2
www.securityfocus.com/bid/68862
bugzilla.redhat.com/show_bug.cgi?id=1122472
github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212
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