CVE-2018-16839: Buffer Overflow
First published: Wed Oct 31 2018(Updated: )
Curl versions 7.33.0 through 7.61.1 are vulnerable to a buffer overrun in the SASL authentication code that may lead to denial of service.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Haxx Curl | >=7.33.0<=7.61.1 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| ubuntu/curl | <7.58.0-2ubuntu3.5 | 7.58.0-2ubuntu3.5 |
| ubuntu/curl | <7.61.0-1ubuntu2.2 | 7.61.0-1ubuntu2.2 |
| ubuntu/curl | <7.35.0-1ubuntu2.19 | 7.35.0-1ubuntu2.19 |
| ubuntu/curl | <7.47.0-1ubuntu2.11 | 7.47.0-1ubuntu2.11 |
| debian/curl | 7.74.0-1.3+deb11u12 7.74.0-1.3+deb11u11 7.88.1-10+deb12u6 7.88.1-10+deb12u5 8.8.0-4 8.9.1-2 |
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Reference Links
- http://www.securitytracker.com/id/1042012
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16839
- https://curl.haxx.se/docs/CVE-2018-16839.html
- https://github.com/curl/curl/commit/f3a24d7916b9173c69a3e0ee790102993833d6c5
- https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f@%3Cdevnull.infra.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
- https://security.gentoo.org/glsa/201903-03
- https://usn.ubuntu.com/3805-1/
- https://www.debian.org/security/2018/dsa-4331
- https://launchpad.net/bugs/cve/CVE-2018-16839
- https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3E
- https://security-tracker.debian.org/tracker/CVE-2018-16839
- https://ubuntu.com/security/notices/USN-3805-1
- https://www.cve.org/CVERecord?id=CVE-2018-16839
- https://nvd.nist.gov/vuln/detail/CVE-2018-16839
- https://ubuntu.com/security/CVE-2018-16839
Frequently Asked Questions
What is CVE-2018-16839?
CVE-2018-16839 is a vulnerability in Curl versions 7.33.0 through 7.61.1 that can lead to denial of service due to a buffer overrun in the SASL authentication code.
What is the severity of CVE-2018-16839?
The severity of CVE-2018-16839 is critical with a CVSS score of 9.8.
How does CVE-2018-16839 affect software?
CVE-2018-16839 affects Curl versions 7.33.0 through 7.61.1 on Debian, Ubuntu, and Haxx Curl, leading to denial of service.
How can I fix CVE-2018-16839?
To fix CVE-2018-16839, update to the recommended versions: 7.64.0-4+deb10u2, 7.64.0-4+deb10u7, 7.74.0-1.3+deb11u9, 7.74.0-1.3+deb11u10, 7.88.1-10+deb12u3, 7.88.1-10+deb12u4, or 8.4.0-2.
Where can I find more information about CVE-2018-16839?
You can find more information about CVE-2018-16839 on the following references: [link1](https://curl.haxx.se/docs/CVE-2018-16839.html), [link2](https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16839), [link3](https://github.com/curl/curl/commit/f3a24d7916b9173c69a3e0ee790102993833d6c5).
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