RHSA-2021:4181

Vulnerability from csaf_opensuse - Published: 2021-11-09 00:00 - Updated: 2026-09-20 11:17
Summary
security update for mutt
Severity
Moderate
Notes
Title of the patch: security update for mutt
Description of the patch: This security update provides a functional equivalent of RHSA-2021:4181. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2021:4181.
Patchnames: RHSA-2021:4181
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2020-28896
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Liberty Linux 8:mutt-5:2.0.7-1.el8.x86_64 —
Vendor Fix
Threats
Impact moderate
CVE-2021-3181
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
Recommended 1 product, the same list as for CVE-2020-28896
Threats
Impact moderate
References
To clipboard 

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  "product_tree": {
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      ],
      "notes": [
        {
          "category": "general",
          "text": "Mutt before 2.0.2 and NeoMutt before 2020-11-20 did not ensure that $ssl_force_tls was processed if an IMAP server\u0027s initial server response was invalid. The connection was not properly closed, and the code could continue attempting to authenticate. This could result in authentication credentials being exposed on an unencrypted connection, or to a machine-in-the-middle.",
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          "text": "rfc822.c in Mutt through 2.0.4 allows remote attackers to cause a denial of service (mailbox unavailability) by sending email messages with sequences of semicolon characters in RFC822 address fields (aka terminators of empty groups). A small email message from the attacker can cause large memory consumption, and the victim may then be unable to see email messages from other persons.",
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    }
  ]
}



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