Vulnerability Details : 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 category: OverflowMemory CorruptionDenial of service

Published 2018-11-08 20:29:01

Updated 2020-08-24 17:37:01

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2018-19115

Probability of exploitation activity in the next 30 days: 2.72%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 89 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-19115

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	[email protected]
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	[email protected]
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2018-19115

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Assigned by: [email protected] (Primary)

References for CVE-2018-19115

https://security.gentoo.org/glsa/201903-01

Third Party Advisory

CVEs referencing this url
https://lists.debian.org/debian-lts-announce/2018/11/msg00034.html

Mailing List;Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1792
https://github.com/acassen/keepalived/pull/961

Patch;Third Party Advisory
https://usn.ubuntu.com/3995-1/
https://access.redhat.com/errata/RHSA-2019:1945
https://bugzilla.suse.com/show_bug.cgi?id=1015141

Issue Tracking;Third Party Advisory

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2019:0022

Third Party Advisory
https://usn.ubuntu.com/3995-2/
https://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9

Patch;Third Party Advisory

Products affected by CVE-2018-19115

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Workstation » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Aus » Version: 7.6
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Eus » Version: 7.6
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Tus » Version: 7.6
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
Matching versions
Keepalived » Keepalived
Versions before (<) 2.0.7
cpe:2.3:a:keepalived:keepalived:*:*:*:*:*:*:*:*
Matching versions