CVE-2017-12192
The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively
02 Description
The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively
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
- 0.44% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 38.7% 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:N/I:N/A:H
- 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
- 2017-10-12 00:00Z9 YR AGO
- Last updated
- 2024-08-05 18:28Z2 YR AGO
- Reserved
- 2017-08-01
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.1
- Document digest
- 9bbc144d41cb93c84cd0b6bc78197175104d28dec1f5b6cd86eb5c54f5263829
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1493435
- usn.ubuntu.comUSN-3583-2https://usn.ubuntu.com/3583-2/
- www.kernel.orghttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
- usn.ubuntu.comUSN-3583-1https://usn.ubuntu.com/3583-1/
- access.redhat.comRHSA-2018:0151https://access.redhat.com/errata/RHSA-2018:0151
- git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678
- github.comhttps://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678
- lkml.orghttps://lkml.org/lkml/2017/9/18/764
07 Fixed in
Debian 12
- linux Fixed in 4.13.4-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.13.4-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.13.4-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux Fixed in 3.13.0-142.191
- linux-lts-xenial Fixed in 4.4.0-98.121~14.04.1
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 4.4.0-98.121
- linux-aws Fixed in 4.4.0-1039.48
- linux-azure Fixed in 4.13.0-1005.7
- linux-gcp Fixed in 4.13.0-1002.5
- linux-gke Fixed in 4.4.0-1033.33
- linux-hwe Fixed in 4.13.0-32.35~16.04.1
- linux-kvm Fixed in 4.4.0-1009.14
- linux-raspi2 Fixed in 4.4.0-1076.84
- linux-snapdragon Fixed in 4.4.0-1078.83
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
- linux-snapdragon Fixed in 4.4.0-1078.83
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-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-raspi-realtime 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.