CVE-2018-5803
In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash.
Does this matter?
Lower severity and a low EPSS score (0.83%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.83% probability · 57th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- linux/linux kernel · debian/debian linux · redhat/virtualization host · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
- Source
- PSIRT-CNA@flexerasoftware.com
EPSS 0.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://access.redhat.com/errata/RHSA-2018:1854Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0641Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.15.8Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.121Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.87Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9cVendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.htmlThird Party Advisory
- https://secuniaresearch.flexerasoftware.com/advisories/81331/Third Party Advisory
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-2/Third Party Advisory
- https://usn.ubuntu.com/3654-1/Third Party Advisory
- https://usn.ubuntu.com/3654-2/Third Party Advisory
- https://usn.ubuntu.com/3656-1/Third Party Advisory
- https://usn.ubuntu.com/3697-1/Third Party Advisory
- https://usn.ubuntu.com/3697-2/Third Party Advisory
- https://usn.ubuntu.com/3698-1/Third Party Advisory
- https://usn.ubuntu.com/3698-2/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4187Third Party Advisory
- https://www.debian.org/security/2018/dsa-4188Third Party Advisory
- https://www.spinics.net/lists/linux-sctp/msg07036.htmlMailing List, Third Party Advisory
- https://www.spinics.net/lists/netdev/msg482523.htmlMailing List, Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1854Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.