CVE-2018-19115 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://access.redhat.com/errata/RHSA-2019:0022 https://access.redhat.com/errata/RHSA-2019:1792 https://access.redhat.com/errata/RHSA-2019:1945 https://bugzilla.suse.com/show_bug.cgi?id=1015141 https://github.com/acassen/keepalived/pull/961 https://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9 https://lists.debian.org/debian-lts-announce/2018/11/msg00034.html https://security.gentoo.org/glsa/201903-01 https://usn.ubuntu.com/3995-1/ https://usn.ubuntu.com/3995-2/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8