CVE-2021-31855 - KDE Messagelib through 5.17.0 reveals cleartext of encrypted messages in some situations. Deleting a

CVE-2021-31855

Summary

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.

References

https://kde.org/info/security/advisory-20210429-1.txt

Vulnerable Configurations

cpe:2.3:a:kde:messagelib:5.5.1:*:*:*:*:*:*:*
cpe:2.3:a:kde:messagelib:5.5.1:*:*:*:*:*:*:*

CVSS

Base:	4.0 (as of 12-07-2022 - 17:42)
Impact:
Exploitability:

CWE

CWE-312

CAPEC

Retrieve Embedded Sensitive Data
An attacker examines a target system to find sensitive data that has been embedded within it. This information can reveal confidential contents, such as account numbers or individual keys/credentials that can be used as an intermediate step in a larger attack.

Access

Vector	Complexity	Authentication
NETWORK	LOW	SINGLE

Impact

Confidentiality	Integrity	Availability
PARTIAL	NONE	NONE

cvss-vector via4

AV:N/AC:L/Au:S/C:P/I:N/A:N

Last major update

12-07-2022 - 17:42

Published

02-06-2021 - 16:15

Last modified

12-07-2022 - 17:42