Improper input validation in Linux Kernel
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.008 (56.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Linux Kernel
- Linux Foundation Kernel — versions Before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102.
- Debian Linux — versions 7.0, 8.0, 9.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Workstation — versions 7.0
- Red Hat Virtualization Host — versions 4.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secuniaresearch.flexerasoftware.com/advisories/81331/ (Third Party Advisory, third-party-advisory)
- access.redhat.com/errata/RHSA-2018:3083 (vendor-advisory, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25 (Vendor Advisory)
- www.debian.org/security/2018/dsa-4187 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3654-1/ (vendor-advisory, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51 (Vendor Advisory)
- access.redhat.com/errata/RHSA-2018:1854 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3697-1/ (vendor-advisory, Third Party Advisory)
- cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102 (Vendor Advisory)
- www.debian.org/security/2018/dsa-4188 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-5803?
- CVE-2018-5803 is a medium-severity vulnerability in Linux Kernel, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2018-06-12.
- How severe is CVE-2018-5803?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-5803 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.