CVE-2016-1237
nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.
02 Description
nfsd in the Linux kernel through 4.6.3 allows local users to bypass intended file-permission restrictions by setting a POSIX ACL, related to nfs2acl.c, nfs3acl.c, and nfs4acl.c.
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
- 0.36% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 30.0% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- 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
- 2016-06-29 14:00Z10 YR AGO
- Last updated
- 2024-08-05 22:48Z2 YR AGO
- Reserved
- 2015-12-27
- Assigning CNA
- debian
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 3bb0a06ab86f6536db0faa4e76babc58bc390e5cb16a84570c0f06dd3f243197
05 Affected products
06 References
- www.ubuntu.comUSN-3070-1http://www.ubuntu.com/usn/USN-3070-1
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1350845
- www.ubuntu.comUSN-3053-1http://www.ubuntu.com/usn/USN-3053-1
- www.openwall.com[oss-security] 20160625 Linux CVE-2016-1237: nfsd: any user can set a file's ACL over NFS and grant access to ithttp://www.openwall.com/lists/oss-security/2016/06/25/2
- www.ubuntu.comUSN-3070-3http://www.ubuntu.com/usn/USN-3070-3
- www.debian.orgDSA-3607http://www.debian.org/security/2016/dsa-3607
- www.ubuntu.comUSN-3070-2http://www.ubuntu.com/usn/USN-3070-2
- github.comhttps://github.com/torvalds/linux/commit/999653786df6954a31044528ac3f7a5dadca08f4
- www.securityfocus.com91456http://www.securityfocus.com/bid/91456
- www.ubuntu.comUSN-3070-4http://www.ubuntu.com/usn/USN-3070-4
- git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=999653786df6954a31044528ac3f7a5dadca08f4
07 Fixed in
Debian 12
- linux Fixed in 4.6.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.6.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.6.2-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux-lts-vivid Fixed in 3.19.0-66.74~14.04.1
- linux-lts-xenial Fixed in 4.4.0-36.55~14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-36.55
- linux-raspi2 Fixed in 4.4.0-1021.27
- linux-snapdragon Fixed in 4.4.0-1024.27
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.