Vulnerability CVE-2018-19115
Published: 2018-11-08

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.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Redhat -> Enterprise linux 
Redhat -> Enterprise linux server aus 
Redhat -> Enterprise linux server eus 
Redhat -> Enterprise linux workstation 
Redhat -> Enterprise linux server 
Redhat -> Enterprise linux server tus 
Debian -> Debian linux 

 References:
https://access.redhat.com/errata/RHSA-2019:0022
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/
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