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9.8
CVSSv3

CVE-2021-43529

Published: 16/02/2023 Updated: 28/02/2023
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 0
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Vulnerability Summary

Thunderbird versions before 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures.

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Vendor Advisories

Debian Security Advisories: DSA-5034-1 thunderbird -- security update
Multiple security issues were discovered in Thunderbird, which could result in the execution of arbitrary code, spoofing, information disclosure, downgrade attacks on SMTP STARTTLS connections or misleading display of OpenPGP/MIME signatures For the oldstable distribution (buster), these problems have been fixed in version 1:9141-1~deb10u1 For ...

References

CWE-787https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-43529https://nvd.nist.govhttps://www.debian.org/security/2022/dsa-5034
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2024-3581reflected XSSCVE-2024-26925CVE-2024-27956LFICVE-2024-3607CVE-2024-3107CVE-2024-3295SQL
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