CVE-2016-7097
The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a
02 Description
The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a
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
- 0.39% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 33.0% of scored records. A rank, not a probability.
- NVD base score
- 4.4 (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:L/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. 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
- 2016-10-16 21:00Z10 YR AGO
- Last updated
- 2024-08-06 01:50Z2 YR AGO
- Reserved
- 2016-08-26
- Assigning CNA
- redhat
- 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
- 789b2b797303924f916482d6ff5222eed5febae45a37644a686ea685097a92e2
05 Affected products
06 References
- www.ubuntu.comUSN-3146-2http://www.ubuntu.com/usn/USN-3146-2
- www.ubuntu.comUSN-3146-1http://www.ubuntu.com/usn/USN-3146-1
- source.android.comhttps://source.android.com/security/bulletin/2017-04-01
- www.securityfocus.com92659http://www.securityfocus.com/bid/92659
- access.redhat.comRHSA-2017:2669https://access.redhat.com/errata/RHSA-2017:2669
- www.spinics.net[linux-fsdevel] 20160526 [PATCH 2/2] posix_acl: Clear SGID bit when modifying file permissionshttp://www.spinics.net/lists/linux-fsdevel/msg98328.html
- git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073931017b49d9458aa351605b43a7e34598caef
- www.openwall.com[oss-security] 20160826 Re: CVE request -- linux kernel: Setting a POSIX ACL via setxattr doesn't clear the setgid bithttp://www.openwall.com/lists/oss-security/2016/08/26/3
- rhn.redhat.comRHSA-2017:0817http://rhn.redhat.com/errata/RHSA-2017-0817.html
- www.ubuntu.comUSN-3147-1http://www.ubuntu.com/usn/USN-3147-1
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1368938
- github.comhttps://github.com/torvalds/linux/commit/073931017b49d9458aa351605b43a7e34598caef
- access.redhat.comRHSA-2017:2077https://access.redhat.com/errata/RHSA-2017:2077
- access.redhat.comRHSA-2017:1842https://access.redhat.com/errata/RHSA-2017:1842
- marc.info[linux-fsdevel] 20160819 [PATCH v2] posix_acl: Clear SGID bit when setting file permissionshttp://marc.info/?l=linux-fsdevel&m=147162313630259&w=2
- www.securitytracker.com1038201http://www.securitytracker.com/id/1038201
- support.f5.comhttps://support.f5.com/csp/article/K31603170?utm_source=f5support&%3Butm_medium=RSS
07 Fixed in
Debian 12
- linux Fixed in 4.7.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.7.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.7.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux Fixed in 3.13.0-132.181
- linux-lts-xenial Fixed in 4.4.0-51.72~14.04.1
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 4.4.0-51.72
- linux-raspi2 Fixed in 4.4.0-1038.45
- linux-snapdragon Fixed in 4.4.0-1042.46
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
- linux-oem 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.