Vulnerability in Linux Kernel
CVE-2015-2925
The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack."
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.9 (Medium). Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.012 (68.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.04
- Debian Linux — versions 7.0, 8.0
Public proof-of-concept exploits
References
- lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html (vendor-advisory, Mailing List, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2015-2636.html (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2015/dsa-3372 (vendor-advisory, Third Party Advisory)
- permalink.gmane.org/gmane.linux.kernel.containers/29173 (mailing-list, Broken Link)
- rhn.redhat.com/errata/RHSA-2016-0068.html (vendor-advisory, Third Party Advisory)
- pkgs.fedoraproject.org/cgit/kernel.git/commit/ (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html (vendor-advisory, Mailing List, Third Party Advisory)
- www.ubuntu.com/usn/USN-2792-1 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/73926 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-2925?
- CVE-2015-2925 is a vulnerability in Linux Kernel. Published 2015-11-16.
- Is CVE-2015-2925 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.