Information Disclosure Vulnerability in KDE Messagelib
CVE-2021-31855

6.5MEDIUM

Key Information:

Vendor

Kde

Status
Messagelib
Vendor
CVE Published:
2 June 2021

What is CVE-2021-31855?

KDE Messagelib, up to version 5.17.0, has an information disclosure vulnerability that can expose the plaintext content of encrypted messages. When an attachment is deleted from a decrypted encrypted message stored on a remote server, such as an IMAP server, KMail inadvertently uploads the decrypted content back to the server. This risk arises when users are misled into decrypting an encrypted message and subsequently deleting its attachment. Attackers with access to the email server can potentially exploit this flaw to read the plaintext content of these messages.

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References

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

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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