CVE-2022-26491
First published: Tue May 31 2022(Updated: )
An issue was discovered in Pidgin before 2.14.9. A remote attacker who can spoof DNS responses can redirect a client connection to a malicious server. The client will perform TLS certificate verification of the malicious domain name instead of the original XMPP service domain, allowing the attacker to take over control over the XMPP connection and to obtain user credentials and all communication content. This is similar to CVE-2022-24968.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Pidgin Pidgin | <2.14.9 | |
| Debian Debian Linux | =9.0 |
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Reference Links
- https://developer.pidgin.im/wiki/FullChangeLog
- https://github.com/xsf/xeps/pull/1158
- https://keep.imfreedom.org/pidgin/pidgin/rev/13cdb7956bdc
- https://lists.debian.org/debian-lts-announce/2022/06/msg00005.html
- https://mail.jabber.org/pipermail/standards/2022-February/038759.html
- https://pidgin.im/about/security/advisories/cve-2022-26491/
Frequently Asked Questions
What is CVE-2022-26491?
CVE-2022-26491 is a vulnerability discovered in Pidgin before version 2.14.9 that allows a remote attacker to redirect a client connection to a malicious server by spoofing DNS responses.
How does CVE-2022-26491 affect Pidgin and Debian Linux?
CVE-2022-26491 affects Pidgin versions before 2.14.9 and Debian Linux version 9.0.
What is the severity of CVE-2022-26491?
The severity of CVE-2022-26491 is medium, with a severity value of 5.9.
How can an attacker exploit CVE-2022-26491?
An attacker can exploit CVE-2022-26491 by spoofing DNS responses to redirect a client connection to a malicious server.
How can I fix CVE-2022-26491?
To fix CVE-2022-26491, update Pidgin to version 2.14.9 or above.
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