Heap-based Buffer Overflow Affecting keepalived package, versions <0:1.3.5-1.el7_4.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL7-KEEPALIVED-4850169
- published26 Jul 2021
- disclosed8 Nov 2018
Introduced: 8 Nov 2018
CVE-2018-19115 (opens in a new tab)How to fix?
Upgrade RHEL:7 keepalived to version 0:1.3.5-1.el7_4.1 or higher.
This issue was patched in RHSA-2019:1945.
NVD Description
Note: Versions mentioned in the description apply only to the upstream keepalived package and not the keepalived package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2018-19115
- https://security.gentoo.org/glsa/201903-01
- 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://access.redhat.com/errata/RHSA-2019:1945
- https://usn.ubuntu.com/3995-1/
- https://usn.ubuntu.com/3995-2/