CVE-2018-19115: Buffer Overflow
First published: Thu Nov 08 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <2.0.7 | ||
| =8.0 | ||
| =7.0 | ||
| =7.6 | ||
| =7.6 | ||
| =7.6 | ||
| =7.0 | ||
| Keepalived Keepalived | <2.0.7 | |
| Debian Debian Linux | =8.0 | |
| Redhat Enterprise Linux Server | =7.0 | |
| Redhat Enterprise Linux Server Aus | =7.6 | |
| Redhat Enterprise Linux Server Eus | =7.6 | |
| Redhat Enterprise Linux Server Tus | =7.6 | |
| Redhat Enterprise Linux Workstation | =7.0 | |
| redhat/keepalived | <2.0.9 | 2.0.9 |
| debian/keepalived | 1:2.0.10-1 1:2.0.10-1+deb10u1 1:2.1.5-0.2+deb11u1 1:2.2.7-1 1:2.2.8-1 | |
| ubuntu/keepalived | <1:1.3.9-1ubuntu0.18.04.2 | 1:1.3.9-1ubuntu0.18.04.2 |
| ubuntu/keepalived | <1:1.3.9-1ubuntu1.1 | 1:1.3.9-1ubuntu1.1 |
| ubuntu/keepalived | <1:1.2.7-1ubuntu1+ | 1:1.2.7-1ubuntu1+ |
| ubuntu/keepalived | <2.0.9 | 2.0.9 |
| ubuntu/keepalived | <1:1.2.24-1ubuntu0.16.04.2 | 1:1.2.24-1ubuntu0.16.04.2 |
Remedy
https://github.com/acassen/keepalived/pull/961/commits/f28015671a4b04785859d1b4b1327b367b6a10e9
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Reference Links
- 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-2019:0022
- 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-2019:1792
- https://access.redhat.com/errata/RHSA-2019:1945
- https://launchpad.net/bugs/cve/CVE-2018-19115
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1651873
- https://access.redhat.com/support/policy/updates/errata/
- https://github.com/acassen/keepalived/issues/960
- https://bugzilla.redhat.com/show_bug.cgi?id=1651871
- https://security-tracker.debian.org/tracker/CVE-2018-19115
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19115
- https://ubuntu.com/security/notices/USN-3995-1
- https://ubuntu.com/security/notices/USN-3995-2
- https://nvd.nist.gov/vuln/detail/CVE-2018-19115
- https://github.com/acassen/keepalived/commit/f28015671a4b04785859d1b4b1327b367b6a10e9
- https://ubuntu.com/security/CVE-2018-19115
Frequently Asked Questions
What is CVE-2018-19115?
CVE-2018-19115 is a vulnerability in keepalived before version 2.0.7 that allows a heap-based buffer overflow when parsing HTTP status codes, leading to denial of service (DoS) or other unspecified impact.
How severe is CVE-2018-19115?
CVE-2018-19115 has a severity score of 9.8, which is considered critical.
How does CVE-2018-19115 affect keepalived?
CVE-2018-19115 affects keepalived versions before 2.0.7.
Is there a fix for CVE-2018-19115?
Yes, the fix for CVE-2018-19115 is to update keepalived to version 2.0.7 or later.
Where can I find more information about CVE-2018-19115?
You can find more information about CVE-2018-19115 at the following references: [CVE-2018-19115](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-19115), [GitHub Pull Request](https://github.com/acassen/keepalived/pull/961), [Ubuntu Security Notice](https://ubuntu.com/security/notices/USN-3995-1).
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