CVE-2014-5045

 

Published at: - 01-08-2014 01:13

Last modified: - 21-09-2022 08:44

Total changes: - 2

Description

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.

Common Vulnerability Scoring System (CVSS)

AV:L/AC:H/Au:N/C:C/I:C/A:C

 

Verification logic

 

Reference

• [oss-security] 20140723 Re: CVE request: kernel: vfs: refcount issues during unmount on symlink-Mailing List, Third Party Advisory
• https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212
• 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
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8
• RHSA-2015:0062-Third Party Advisory
• 68862-Third Party Advisory, VDB Entry
• 60353-Third Party Advisory

 

Keywords

NVD

 

CVE-2014-5045

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures