Vulnerability in Linux Kernel
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (44.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.006 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2016/08/23/9 (mailing-list, Exploit, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (VDB Entry, Third Party Advisory, Issue Tracking)
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.6 (Release Notes, Vendor Advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Exploit, Patch, Vendor Advisory)
- github.com/torvalds/linux/commit/ab79efab0a0ba01a74df782eb7fa44b044dae8b5 (Patch)
- www.securityfocus.com/bid/92611 (vdb-entry)
Frequently asked questions
- What is CVE-2015-8953?
- CVE-2015-8953 is a medium-severity vulnerability in Linux Kernel, classified under CWE-399. CVSS score: 5.5/10. Published 2016-10-16.
- How severe is CVE-2015-8953?
- Medium severity. CVSS v3 base score is 5.5 out of 10.