VulnerabilityModified

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.

MEDIUM 5.5EPSS 0.54%

Does this matter?

Lower severity and a low EPSS score (0.54%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.0: 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.54% probability · 44th percentile
CISA KEV: Not listed
Weakness: CWE-399
Affected: linux/linux kernel
Source: cve@mitre.org

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5Exploit, Patch, Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/08/23/9Exploit, Third Party Advisory
http://www.securityfocus.com/bid/92611
https://bugzilla.redhat.com/show_bug.cgi?id=1367814Issue Tracking, Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ab79efab0a0ba01a74df782eb7fa44b044dae8b5Exploit, Patch, Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6Release Notes, Vendor Advisory
http://www.openwall.com/lists/oss-security/2016/08/23/9Exploit, Third Party Advisory
http://www.securityfocus.com/bid/92611
https://bugzilla.redhat.com/show_bug.cgi?id=1367814Issue Tracking, Third Party Advisory, VDB Entry
https://github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5Patch

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.