MGASA-2021-0067 - Updated messagelib packages fix a security vulnerability

Publication date: 04 Feb 2021
URL: https://advisories.mageia.org/MGASA-2021-0067.html
Type: security
Affected Mageia releases: 7
CVE: CVE-2019-10732

In KDE KMail, an attacker in possession of S/MIME or PGP encrypted emails can
wrap them as sub-parts within a crafted multipart email. The encrypted part(s)
can further be hidden using HTML/CSS or ASCII newline characters. This modified
multipart email can be re-sent by the attacker to the intended receiver. If the
receiver replies to this (benign looking) email, they unknowingly leak the
plaintext of the encrypted message part(s) back to the attacker
(CVE-2019-10732).

References:
- https://bugs.mageia.org/show_bug.cgi?id=28260
- https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/UIP7JD6E7AKTOSG2IAFVY4AE7G4NZIKB/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10732

SRPMS:
- 7/core/messagelib-19.04.0-1.1.mga7

Mageia 2021-0067: messagelib security update

In KDE KMail, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email

Summary

In KDE KMail, an attacker in possession of S/MIME or PGP encrypted emails can wrap them as sub-parts within a crafted multipart email. The encrypted part(s) can further be hidden using HTML/CSS or ASCII newline characters. This modified multipart email can be re-sent by the attacker to the intended receiver. If the receiver replies to this (benign looking) email, they unknowingly leak the plaintext of the encrypted message part(s) back to the attacker (CVE-2019-10732).

References

- https://bugs.mageia.org/show_bug.cgi?id=28260

- https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/UIP7JD6E7AKTOSG2IAFVY4AE7G4NZIKB/

- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10732

Resolution

MGASA-2021-0067 - Updated messagelib packages fix a security vulnerability

SRPMS

- 7/core/messagelib-19.04.0-1.1.mga7

Severity
Publication date: 04 Feb 2021
URL: https://advisories.mageia.org/MGASA-2021-0067.html
Type: security
CVE: CVE-2019-10732

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