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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.19% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 67.8% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2015-11-16 11:00Z10 YR AGO
- Last updated
- 2024-08-06 05:32Z2 YR AGO
- Reserved
- 2015-04-04
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base
- Data version
- 5.1
- Document digest
- 5d7e07fe04da8f142df8522e8c2d38e0b362dea20842f369a15a283d22fe6521
05 Affected products
06 References
- lists.opensuse.orgSUSE-SU-2015:2292http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00018.html
- rhn.redhat.comRHSA-2015:2636http://rhn.redhat.com/errata/RHSA-2015-2636.html
- www.debian.orgDSA-3372http://www.debian.org/security/2015/dsa-3372
- permalink.gmane.org[containers] 20150403 [PATCH review 17/19] vfs: Test for and handle paths that are unreachable from their mnt_roothttp://permalink.gmane.org/gmane.linux.kernel.containers/29173
- rhn.redhat.comRHSA-2016:0068http://rhn.redhat.com/errata/RHSA-2016-0068.html
- pkgs.fedoraproject.orghttp://pkgs.fedoraproject.org/cgit/kernel.git/commit/?h=f22&id=520b64102de2f184036024b2a53de2b67463bd78
- lists.opensuse.orgSUSE-SU-2016:0337http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00009.html
- www.ubuntu.comUSN-2792-1http://www.ubuntu.com/usn/USN-2792-1
- www.securityfocus.com73926http://www.securityfocus.com/bid/73926
- lists.opensuse.orgSUSE-SU-2016:0434http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00034.html
- www.debian.orgDSA-3364http://www.debian.org/security/2015/dsa-3364
- www.ubuntu.comUSN-2794-1http://www.ubuntu.com/usn/USN-2794-1
- www.ubuntu.comUSN-2799-1http://www.ubuntu.com/usn/USN-2799-1
- www.ubuntu.comUSN-2795-1http://www.ubuntu.com/usn/USN-2795-1
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- lists.opensuse.orgSUSE-SU-2015:2194http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00005.html
- lists.opensuse.orgSUSE-SU-2016:0380http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00017.html
- lists.opensuse.orgSUSE-SU-2016:0335http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00007.html
- www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- permalink.gmane.org[containers] 20150403 [PATCH review 19/19] vfs: Do not allow escaping from bind mounts.http://permalink.gmane.org/gmane.linux.kernel.containers/29177
- lists.opensuse.orgSUSE-SU-2016:0383http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00019.html
- git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cde93be45a8a90d8c264c776fab63487b5038a65
- lists.opensuse.orgSUSE-SU-2016:0386http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00021.html
- www.openwall.com[oss-security] 20150404 Re: Linux namespaces: It is possible to escape from bind mountshttp://www.openwall.com/lists/oss-security/2015/04/04/4
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.2.4
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1209367
- git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=397d425dc26da728396e66d392d5dcb8dac30c37
- lists.opensuse.orgSUSE-SU-2016:0384http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html
- github.comhttps://github.com/torvalds/linux/commit/cde93be45a8a90d8c264c776fab63487b5038a65
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1209373
- github.comhttps://github.com/torvalds/linux/commit/397d425dc26da728396e66d392d5dcb8dac30c37
- lists.opensuse.orgSUSE-SU-2016:0387http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00022.html
- lists.opensuse.orgSUSE-SU-2016:0381http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00018.html
- www.ubuntu.comUSN-2798-1http://www.ubuntu.com/usn/USN-2798-1
07 Fixed in
Debian 12
- linux Fixed in 4.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.2.1-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux Fixed in 3.13.0-67.110
- linux-lts-utopic Fixed in 3.16.0-52.71~14.04.1
- linux-lts-vivid Fixed in 3.19.0-32.37~14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-azure No fix yet
- linux-gcp No fix yet
- linux-hwe No fix yet
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-azure-fde No fix yet
- linux-gke No fix yet
- linux-gkeop No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-azure-6.11 No fix yet
- linux-gcp-6.11 No fix yet
- linux-hwe-6.11 No fix yet
- linux-lowlatency-hwe-6.11 No fix yet
- linux-raspi-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- linux-azure-fde-5.15 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.