CVE-2019-8956
In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the "sctp_sendmsg()" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.
02 Description
In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the "sctp_sendmsg()" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.
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
- 1.12% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 66.2% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/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
- 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
- 2019-04-01 18:39Z7 YR AGO
- Last updated
- 2024-08-04 21:31Z2 YR AGO
- Reserved
- 2019-02-20
- Assigning CNA
- flexera
- 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
- 6c293b49fb103839e244995e31fa409767b689119407a3054432215d1373a103
05 Affected products
06 References
- cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21
- cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
- secuniaresearch.flexerasoftware.comhttps://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/
- git.kernel.orghttps://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0
- usn.ubuntu.comUSN-3930-1https://usn.ubuntu.com/3930-1/
- usn.ubuntu.comUSN-3930-2https://usn.ubuntu.com/3930-2/
- support.f5.comhttps://support.f5.com/csp/article/K12671141
07 Fixed in
Debian 12
- linux Fixed in 4.19.28-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.19.28-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.19.28-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-azure Fixed in 4.18.0-1014.14~18.04.1
- linux-gcp-edge Fixed in 4.18.0-1008.9~18.04.1
- linux-hwe Fixed in 4.18.0-17.18~18.04.1
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.