CVE-2017-18249
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly
02 Description
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly
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
- 0.30% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 23.2% of scored records. A rank, not a probability.
- NVD base score
- 7.0 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/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
- 2018-03-26 20:00Z8 YR AGO
- Last updated
- 2024-08-05 21:13Z2 YR AGO
- Reserved
- 2018-03-26
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.1
- Document digest
- 04fa34053dc376df6238c71811a2924bfba9d5e7975bc405a48b62f4ec472727
05 Affected products
06 References
- www.securitytracker.com1041432http://www.securitytracker.com/id/1041432
- github.comhttps://github.com/torvalds/linux/commit/30a61ddf8117c26ac5b295e1233eaa9629a94ca3
- lists.debian.org[debian-lts-announce] 20190315 [SECURITY] [DLA 1715-1] linux-4.9 security updatehttps://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
- git.kernel.orghttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=30a61ddf8117c26ac5b295e1233eaa9629a94ca3
- usn.ubuntu.comUSN-3932-1https://usn.ubuntu.com/3932-1/
- usn.ubuntu.comUSN-3932-2https://usn.ubuntu.com/3932-2/
07 Fixed in
Debian 12
- linux Fixed in 4.12.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.12.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.12.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- linux-aws Fixed in 4.4.0-1040.43
- linux-lts-xenial Fixed in 4.4.0-144.170~14.04.1
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 4.4.0-145.171
- linux-aws Fixed in 4.4.0-1079.89
- linux-azure Fixed in 4.13.0-1005.7
- linux-gcp Fixed in 4.13.0-1002.5
- linux-hwe Fixed in 4.13.0-32.35~16.04.1
- linux-kvm Fixed in 4.4.0-1043.49
- linux-raspi2 Fixed in 4.4.0-1106.114
- linux-snapdragon Fixed in 4.4.0-1110.115
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-snapdragon Fixed in 4.15.0-1053.57
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-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
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux 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.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1008.10Available with Ubuntu Pro: https://ubuntu.com/pro
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.