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CVE-2025-67897

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Date: December 14, 2025

In Sequoia before 2.1.0, aes_key_unwrap panics if passed a ciphertext that is too short. A remote attacker can take advantage of this issue to crash an application by sending a victim an encrypted message with a crafted PKESK or SKESK packet.

Severity Score

Related Resources (8)

https://bugs.debian.org/1122582
https://gitlab.com/sequoia-pgp/sequoia
https://gitlab.com/sequoia-pgp/sequoia/-/blob/b59886e5e7bdf7169ed330f309a6633d131776e5/openpgp/NEWS#L7-L26
https://crates.io/crates/sequoia-openpgp
https://nvd.nist.gov/vuln/detail/CVE-2025-67897
https://gitlab.com/sequoia-pgp/sequoia/-/commit/b59886e5e7bdf7169ed330f309a6633d131776e5
https://rustsec.org/advisories/RUSTSEC-2025-0136.html
https://www.mend.io/vulnerability-database/CVE-2025-67897

Severity Score

Weakness Type (CWE)

Signed to Unsigned Conversion Error

CWE-195

Top Fix

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Upgrade Version

Upgrade to version sequoia-openpgp - 2.1.0;https://gitlab.com/sequoia-pgp/sequoia.git - openpgp/v2.1.0

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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