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Joined: 12 May 2004
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PostPosted: Wed Jul 29, 2020 6:26 am    Post subject: [ GLSA 202007-56 ] Claws Mail Reply with quote

Gentoo Linux Security Advisory

Title: Claws Mail: Improper STARTTLS handling (GLSA 202007-56)
Severity: normal
Exploitable: remote
Date: 2020-07-28
Bug(s): #733684
ID: 202007-56

Synopsis

A vulnerability was discovered in Claws Mail's STARTTLS handling,
possibly allowing an integrity/confidentiality compromise.


Background

Claws Mail is a GTK based e-mail client.

Affected Packages

Package: mail-client/claws-mail
Vulnerable: < 3.17.6
Unaffected: >= 3.17.6
Architectures: All supported architectures


Description

It was discovered that Claws Mail was not properly handling state within
the STARTTLS protocol handshake.


Impact

There may be a breach of integrity or confidentiality in connections
made using Claws Mail with STARTTLS.


Workaround

There is no known workaround at this time.

Resolution

All Claws Mail users should upgrade to the latest version:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=mail-client/claws-mail-3.17.6"
   


References

CVE-2020-15917
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