CVE-2015-8953

Severity

49%

Complexity

39%

Confidentiality

115%

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.

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 3.0 Base Score 5.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 4.9. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C).

Overview

First reported 8 years ago

2016-10-16 21:59:00

Last updated 8 years ago

2016-11-28 19:50:00

Affected Software

Linux Kernel

References

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

[oss-security] 20160823 cve request: overlayfs: Fix dentry reference leak

Exploit, Third Party Advisory

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

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