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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.75%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.75% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- keepalived/keepalived · debian/debian linux · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- cve@mitre.org
References
- https://access.redhat.com/errata/RHSA-2019:0022Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1792
- https://access.redhat.com/errata/RHSA-2019:1945
- https://bugzilla.suse.com/show_bug.cgi?id=1015141Issue Tracking, Third Party Advisory
- https://github.com/acassen/keepalived/pull/961Patch, Third Party Advisory
- https://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00034.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-01Third Party Advisory
- https://usn.ubuntu.com/3995-1/
- https://usn.ubuntu.com/3995-2/
- https://access.redhat.com/errata/RHSA-2019:0022Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1792
- https://access.redhat.com/errata/RHSA-2019:1945
- https://bugzilla.suse.com/show_bug.cgi?id=1015141Issue Tracking, Third Party Advisory
- https://github.com/acassen/keepalived/pull/961Patch, Third Party Advisory
- https://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00034.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-01Third Party Advisory
- https://usn.ubuntu.com/3995-1/
- https://usn.ubuntu.com/3995-2/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.