Vulnerability Monitor

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CVE-2015-5706

Use-after-free vulnerability in the path_openat function in fs/namei.c in the Linux kernel 3.x and 4.x before 4.0.4 allows local users to cause a denial of service or possibly have unspecified other impact via O_TMPFILE filesystem operations that leverage a duplicate cleanup operation.

Published

2015-08-31T10:59:16.080

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.6 (MEDIUM)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

6.4

Weaknesses

Type: Primary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	≤ 3.19.8	Yes
Operating System	linux	linux_kernel	< 4.0.4	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	debian	debian_linux	7.0	Yes
Operating System	debian	debian_linux	8.0	Yes

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0 Patch, Vendor Advisory ([email protected])
http://twitter.com/grsecurity/statuses/597127122910490624 Broken Link ([email protected])
http://www.debian.org/security/2015/dsa-3329 Third Party Advisory ([email protected])
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4 Release Notes, Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2015/08/01/5 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/76142 Third Party Advisory, VDB Entry ([email protected])
http://www.ubuntu.com/usn/USN-2680-1 Third Party Advisory ([email protected])
http://www.ubuntu.com/usn/USN-2681-1 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1250047 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/torvalds/linux/commit/f15133df088ecadd141ea1907f2c96df67c729f0 Patch, Third Party Advisory ([email protected])
https://source.android.com/security/bulletin/2017-01-01.html Patch, Third Party Advisory ([email protected])
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://twitter.com/grsecurity/statuses/597127122910490624 Broken Link (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2015/dsa-3329 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4 Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2015/08/01/5 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/76142 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2680-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2681-1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1250047 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/f15133df088ecadd141ea1907f2c96df67c729f0 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://source.android.com/security/bulletin/2017-01-01.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)