Attestkeep
Language: English
Sign up

Vulnerabilities / CVE-2018-19115

critical

CVE-2018-19115

keepalived: Heap-based buffer overflow when parsing HTTP status codes allows for denial of service or possibly arbitrary code execution

Published Modified CWE 787
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (high), Amazon (high), Oracle (high), Ubuntu (medium).

Description

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.

Affected packages and fixed versions

SourcePackageFixed in
amazon linux 2keepalived, keepalived-debuginfo1.3.5-8.amzn2
debian 11keepalived1:2.0.10-1
debian 12keepalived1:2.0.10-1
debian 13keepalived1:2.0.10-1
debian 14keepalived1:2.0.10-1
debian 8keepalived1:1.2.13-1+deb8u1
debian 9keepalivedno fix listed
echokeepalived1:2.0.10-1
Oracle Linux 7keepalived1.3.5-8.el7_6
Red Hatkeepalivedno fix listed
ubuntu 14.04-ESMkeepalived1:1.2.7-1ubuntu1+esm1
ubuntu 16.04keepalived1:1.2.24-1ubuntu0.16.04.2
Show all 17 entries from 16 sources
SourcePackageFixed in
amazon linux 2keepalived1.3.5-8.amzn2
amazon linux 2keepalived-debuginfo1.3.5-8.amzn2
debian 11keepalived1:2.0.10-1
debian 12keepalived1:2.0.10-1
debian 13keepalived1:2.0.10-1
debian 14keepalived1:2.0.10-1
debian 8keepalived1:1.2.13-1+deb8u1
debian 9keepalivedno fix listed
echokeepalived1:2.0.10-1
Oracle Linux 7keepalived1.3.5-8.el7_6
Red Hatkeepalivedno fix listed
ubuntu 14.04-ESMkeepalived1:1.2.7-1ubuntu1+esm1
ubuntu 16.04keepalived1:1.2.24-1ubuntu0.16.04.2
ubuntu 16.04-ESMkeepalived1:1.2.24-1ubuntu0.16.04.2
ubuntu 18.04keepalived1:1.3.9-1ubuntu0.18.04.2
ubuntu 18.04-ESMkeepalived1:1.3.9-1ubuntu0.18.04.2
ubuntu 18.10keepalived1:1.3.9-1ubuntu1.1

References

All 17 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.