CVE-2018-16842
First published: Tue Oct 30 2018(Updated: )
Curl versions 7.14.1 through 7.61.1 are vulnerable to a heap-based buffer over-read in the tool_msgs.c:voutf() function that may result in information exposure and denial of service.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Haxx Curl | >=7.14.1<=7.61.1 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| redhat/curl | <7.62.0 | 7.62.0 |
| 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/1042014
- https://access.redhat.com/errata/RHSA-2019:2181
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16842
- https://curl.haxx.se/docs/CVE-2018-16842.html
- https://github.com/curl/curl/commit/d530e92f59ae9bb2d47066c3c460b25d2ffeb211
- 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://usn.ubuntu.com/3805-2/
- https://www.debian.org/security/2018/dsa-4331
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://launchpad.net/bugs/cve/CVE-2018-16842
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1644558
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1644559
- https://github.com/curl/curl/commit/5d0ba70e17bde74d9a9108c38558f6491d2b5c4d
- https://github.com/curl/curl/issues/2174
- https://github.com/curl/curl/commit/481e0de00a9003b9c5220b120e3fc302d9b0932d
- https://github.com/curl/curl/commit/70b1900dd13d16f2e83f571407a614541d5ac9ba
- https://sourceforge.net/p/curl/bugs/652/
- https://access.redhat.com/security/cve/cve-2018-16842
- https://bugzilla.redhat.com/show_bug.cgi?id=1644124
- https://security-tracker.debian.org/tracker/CVE-2018-16842
- https://ubuntu.com/security/notices/USN-3805-1
- https://ubuntu.com/security/notices/USN-3805-2
- https://www.cve.org/CVERecord?id=CVE-2018-16842
- https://nvd.nist.gov/vuln/detail/CVE-2018-16842
- https://ubuntu.com/security/CVE-2018-16842
Frequently Asked Questions
What is CVE-2018-16842?
CVE-2018-16842 is a vulnerability in Curl versions 7.14.1 through 7.61.1 that allows for a heap-based buffer over-read in the tool_msgs.c:voutf() function, potentially resulting in information exposure and denial of service.
How severe is CVE-2018-16842?
CVE-2018-16842 has a severity rating of 9.1 (critical).
Which software versions are affected by CVE-2018-16842?
Curl versions 7.14.1 through 7.61.1 are affected by CVE-2018-16842.
How do I fix CVE-2018-16842?
To fix CVE-2018-16842, update to one of the following 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-2018-16842?
You can find more information about CVE-2018-16842 at the following references: [1] https://curl.haxx.se/docs/CVE-2018-16842.html [2] https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16842 [3] https://github.com/curl/curl/commit/d530e92f59ae9bb2d47066c3c460b25d2ffeb211
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