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    CVE-2006-5877

    The enigmail extension before 0.94.2 does not properly handle large, encrypted file e-mail attachments, which allows remote attackers to cause a denial of service (crash), as demonstrated with Mozilla Thunderbird.

    Published:Feb 23, 2007
    Last Modified:Apr 23, 2026
    EPS:Feb 23, 2007
    EPSS Score:0.00834
    CVSS Score:7.8

    Affected Products

    Vendor
    Enigmail
    Product
    Enigmail
    Vendor
    Ubuntu
    Product
    Ubuntu Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2019-14664 (CVSS 6.5) — In Enigmail below 2.1, an attacker in possession of PGP encrypted emails can wrap them as sub-parts within a c…
    CVE-2019-12269 (CVSS 7.5) — Enigmail before 2.0.11 allows PGP signature spoofing: for an inline PGP message, an attacker can cause the pro…
    CVE-2018-15586 (CVSS 6.5) — Enigmail before 2.0.6 is prone to to OpenPGP signatures being spoofed for arbitrary messages using a PGP/INLIN…
    CVE-2018-12019 (CVSS 7.5) — The signature verification routine in Enigmail before 2.0.7 interprets user ids as status/control messages and…
    CVE-2017-17843 (CVSS 5.9) — An issue was discovered in Enigmail before 1.9.9 that allows remote attackers to trigger use of an intended pu…
    CVE-2017-17846 (CVSS 7.5) — An issue was discovered in Enigmail before 1.9.9. Regular expressions are exploitable for Denial of Service, b…
    CVE-2017-17847 (CVSS 7.5) — An issue was discovered in Enigmail before 1.9.9. Signature spoofing is possible because the UI does not prope…
    CVE-2017-17848 (CVSS 7.5) — An issue was discovered in Enigmail before 1.9.9. In a variant of CVE-2017-17847, signature spoofing is possib…
    CVE-2017-17844 (CVSS 6.5) — An issue was discovered in Enigmail before 1.9.9. A remote attacker can obtain cleartext content by sending an…
    CVE-2017-17845 (CVSS 7.3) — An issue was discovered in Enigmail before 1.9.9. Improper Random Secret Generation occurs because Math.Random…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High