Mageia 2021-0208: messagelib security update
Summary
Deleting an attachment of a decrypted encrypted message stored on a remote
server (e.g. an IMAP server) causes KMail to upload the decrypted content of
the message to the remote server. This is not easily noticeable by the user
because KMail does not display the decrypted content.
With a specially crafted message a user could be tricked into decrypting an
encrypted message and then deleting an attachment attached to this message.
If the attacker has access to the messages stored on the email server, then
the attacker could read the decrypted content of the encrypted message
(CVE-2021-31855).
References
- https://bugs.mageia.org/show_bug.cgi?id=28861
- https://kde.org/info/security/advisory-20210429-1.txt
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31855
Resolution
MGASA-2021-0208 - Updated messagelib packages fix security vulnerability
SRPMS
- 8/core/messagelib-20.12.0-1.1.mga8
- 7/core/messagelib-19.04.0-1.2.mga7