Upstream information

CVE-2021-31855 at MITRE

Description

KDE Messagelib through 5.17.0 reveals cleartext of encrypted messages in some situations. 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. With a 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. This occurs in ViewerPrivate::deleteAttachment in messageviewer/src/viewer/viewer_p.cpp.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4
Vector AV:N/AC:L/Au:S/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database
Base Score 6.5
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Access Vector Network
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
CVSSv3 Version 3.1
No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 15.4
  • messagelib >= 21.12.3-bp154.1.22
  • messagelib-lang >= 21.12.3-bp154.1.22
Patchnames:
openSUSE Leap 15.4 GA messagelib-21.12.3-bp154.1.22
openSUSE Tumbleweed
  • messagelib >= 21.08.1-1.2
  • messagelib-devel >= 21.08.1-1.2
  • messagelib-lang >= 21.08.1-1.2
Patchnames:
openSUSE Tumbleweed GA messagelib-21.08.1-1.2