CVE-2015-8953

fs/overlayfs/copy_up.c in the Linux kernel before 4.2.6 uses an incorrect cleanup code path, which allows local users to cause a denial of service (dentry reference leak) via filesystem operations on a large file in a lower overlayfs layer.

CVSS v3 5.5 MEDIUM
CVSS v2.0 4.9 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector : AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.9^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5	Exploit Patch Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6	Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/08/23/9	Exploit Third Party Advisory
http://www.securityfocus.com/bid/92611
https://bugzilla.redhat.com/show_bug.cgi?id=1367814	Issue Tracking Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5	Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5	Exploit Patch Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6	Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/08/23/9	Exploit Third Party Advisory
http://www.securityfocus.com/bid/92611
https://bugzilla.redhat.com/show_bug.cgi?id=1367814	Issue Tracking Third Party Advisory VDB Entry
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2016-10-16 21:59

Updated : 2025-04-12 10:46

NVD link : CVE-2015-8953

Mitre link : CVE-2015-8953

CVE.ORG link : CVE-2015-8953

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-399

Resource Management Errors

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