keepalived before version 2.0.9 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. Upstream Patch: https://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9 Reference: https://bugzilla.suse.com/show_bug.cgi?id=1015141
Created keepalived tracking bugs for this issue: Affects: fedora-all [bug 1651873]
Statement: This issue affects the versions of keepalived as shipped with Red Hat Enterprise Linux 6 and 7. Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Important, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Upstream bug report: https://github.com/acassen/keepalived/issues/960
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:0022 https://access.redhat.com/errata/RHSA-2019:0022
This issue has been addressed in the following products: Red Hat Enterprise Linux 7.5 Extended Update Support Via RHSA-2019:1792 https://access.redhat.com/errata/RHSA-2019:1792
This issue has been addressed in the following products: Red Hat Enterprise Linux 7.4 Extended Update Support Via RHSA-2019:1945 https://access.redhat.com/errata/RHSA-2019:1945