CVE-2018-19115

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.56% Top 15%
Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2018-19115?
CVE-2018-19115 has been scored as a critical severity vulnerability.
How to fix CVE-2018-19115?
To fix CVE-2018-19115, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-19115 being actively exploited in the wild?
It is possible that CVE-2018-19115 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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