What is CVE-2015-5706?

CVE-2015-5706 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.6 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2015-5706 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2015-5706?

CVE-2015-5706 has a CVSS score of 4.6 out of 10, rated Medium severity. The vector string is AV:L/AC:L/Au:N/C:P/I:P/A:P.

Is there a patch available for CVE-2015-5706?

No patch is currently available for CVE-2015-5706. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2015-5706 actively exploited?

CVE-2015-5706 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2015-5706

Medium

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.

Package Linux Kernel

Published 2015-08-31

Last modified 2026-05-06

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.6

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

Availability

Vector string

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

Weakness type

CWE-416

CVE-2015-5706 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2015-5706 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Twitter
http://twitter.com/grsecurity/statuses/597127122910490624

Broken Link
Debian Security
http://www.debian.org/security/2015/dsa-3329

Third Party Advisory
Kernel.org
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.4

Release Notes Vendor Advisory
Openwall
http://www.openwall.com/lists/oss-security/2015/08/01/5

Mailing List Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/76142

Third Party Advisory VDB Entry
Ubuntu Security
http://www.ubuntu.com/usn/USN-2680-1

Third Party Advisory
Ubuntu Security
http://www.ubuntu.com/usn/USN-2681-1

Third Party Advisory
Kernel patch commit
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f15133df088ecadd141ea1907f2c96df67c729f0
Patch
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=1250047
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/f15133df088ecadd141ea1907f2c96df67c729f0
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2015-5706

Severity Medium

CVSS score 4.6 / 10

CVSS version 2.0

Published 2015-08-31

Modified 2026-05-06

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2015-5706?

CVE-2015-5706 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.6 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2015-5706 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2015-5706?

CVE-2015-5706 has a CVSS score of 4.6 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:P/I:P/A:P.
Is there a patch available for CVE-2015-5706?

No patch is currently available for CVE-2015-5706. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2015-5706 actively exploited?

No — CVE-2015-5706 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →