CVE-2018-19115
9.8
CRITICAL · CVSS 3.0 · EPSS 3.7% (pctl 90)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.75% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-11-08 |
| Last modified | 2026-06-17 |
Affected (7)
| Vendor | Product |
|---|---|
| debian | debian linux |
| keepalived | keepalived |
| redhat | enterprise linux server |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server eus |
| redhat | enterprise linux server tus |
| redhat | enterprise linux workstation |
References
- 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/
- 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/
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