CVE-2018-1000858: CSRF
First published: Thu Dec 20 2018(Updated: )
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Gnupg Gnupg | >=2.1.12<=2.2.11 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| ubuntu/gnupg2 | <2.2.4-1ubuntu1.2 | 2.2.4-1ubuntu1.2 |
| ubuntu/gnupg2 | <2.2.8-3ubuntu1.1 | 2.2.8-3ubuntu1.1 |
| ubuntu/gnupg2 | <2.2.12-1 | 2.2.12-1 |
| debian/gnupg1 | 1.4.23-1.1 1.4.23-2 | |
| debian/gnupg2 | 2.2.27-2+deb11u2 2.2.40-1.1 2.2.43-8 |
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Reference Links
- https://sektioneins.de/en/advisories/advisory-012018-gnupg-wkd.html
- https://sektioneins.de/en/blog/18-11-23-gnupg-wkd.html
- https://usn.ubuntu.com/3853-1/
- https://launchpad.net/bugs/cve/CVE-2018-1000858
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=fa1b1eaa4241ff3f0634c8bdf8591cbc7c464144
- https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=commit;h=4a4bb874f63741026bd26264c43bb32b1099f060
- https://security-tracker.debian.org/tracker/CVE-2018-1000858
- https://ubuntu.com/security/notices/USN-3853-1
- https://www.cve.org/CVERecord?id=CVE-2018-1000858
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000858
- https://github.com/gpg/gnupg/commit/4a4bb874f63741026bd26264c43bb32b1099f060
- https://ubuntu.com/security/CVE-2018-1000858
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2018-1000858.
What is the severity of CVE-2018-1000858?
The severity of CVE-2018-1000858 is high.
Which version of GnuPG is affected by CVE-2018-1000858?
GnuPG version 2.1.12 - 2.2.11 is affected by CVE-2018-1000858.
How can CVE-2018-1000858 be exploited?
CVE-2018-1000858 can be exploited by performing a CSRF attack through a WKD request.
Are there any remedies available for CVE-2018-1000858?
Yes, there are remedies available for CVE-2018-1000858. Upgrading to GnuPG version 2.2.12-1 or later can fix the vulnerability.
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