CVE-2018-1000858: CSRF
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/gnupg1to a version that resolves this vulnerability.Fixed in 1.4.23-1.1Fixed in 1.4.23-3 - Upgrade
Upgrade
debian/gnupg2to a version that resolves this vulnerability.Fixed in 2.2.27-2+deb11u2Fixed in 2.2.27-2+deb11u3Fixed in 2.2.40-1.1+deb12u2Fixed in 2.4.7-21+deb13u1Fixed in 2.4.8-5 - Upgrade
Upgrade
GnuPGto a version that resolves this vulnerability.Patch 4a4bb874f63741026bd26264c43bb32b1099f060
Event History
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.