Buffer overflow in Keepalived
CVE-2018-19115
keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.037 (89.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Keepalived
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.6
- Red Hat Enterprise Linux Server Tus — versions 7.6
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
References
- security.gentoo.org/glsa/201903-01 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/11/msg00034.html (mailing-list, Mailing List, Third Party Advisory)
- bugzilla.suse.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b36… (Patch, Third Party Advisory)
- github.com/acassen/keepalived/pull/961 (Patch, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:0022 (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3995-1/ (vendor-advisory)
- usn.ubuntu.com/3995-2/ (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:1792 (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:1945 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-19115?
- CVE-2018-19115 is a critical-severity vulnerability in Keepalived, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-11-08.
- How severe is CVE-2018-19115?
- Critical severity. CVSS v3 base score is 9.8 out of 10.