CVE-2014-5045

MEDIUM

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.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=295dc39d941dc2ae53d5c170365af4c9d5c16212

http://rhn.redhat.com/errata/RHSA-2015-0062.html

http://secunia.com/advisories/60353

http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.15.8

http://www.openwall.com/lists/oss-security/2014/07/24/2

http://www.securityfocus.com/bid/68862

https://bugzilla.redhat.com/show_bug.cgi?id=1122472

https://github.com/torvalds/linux/commit/295dc39d941dc2ae53d5c170365af4c9d5c16212

Details

Source: MITRE

Published: 2014-08-01

Updated: 2020-08-14

Type: CWE-59

Risk Information

CVSS v2.0

Base Score: 6.2

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

Impact Score: 10

Exploitability Score: 1.9

Severity: MEDIUM

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
124974EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1521)NessusHuawei Local Security Checks
critical
124805EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1481)NessusHuawei Local Security Checks
high
81800Oracle Linux 7 : kernel (ELSA-2015-0290)NessusOracle Linux Local Security Checks
high
80878RHEL 6 : kernel (RHSA-2015:0062)NessusRed Hat Local Security Checks
high
80014Scientific Linux Security Update : kernel on SL7.x x86_64 (20141209)NessusScientific Linux Local Security Checks
high
79876CentOS 7 : kernel (CESA-2014:1971)NessusCentOS Local Security Checks
high
79848RHEL 7 : kernel (RHSA-2014:1971)NessusRed Hat Local Security Checks
high
79845Oracle Linux 7 : kernel (ELSA-2014-1971)NessusOracle Linux Local Security Checks
high
79181CentOS 6 : kernel (CESA-2014:1392)NessusCentOS Local Security Checks
high
78845Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20141014)NessusScientific Linux Local Security Checks
high
78618Oracle Linux 6 : kernel (ELSA-2014-1392)NessusOracle Linux Local Security Checks
high
78409RHEL 6 : kernel (RHSA-2014:1392)NessusRed Hat Local Security Checks
high
77492Ubuntu 14.04 LTS : linux vulnerabilities (USN-2337-1)NessusUbuntu Local Security Checks
medium
77491Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2336-1)NessusUbuntu Local Security Checks
medium