CVE-2022-40735
CVE Details
Last Update
11/7/2024
NIST CVE Summary
The Diffie-Hellman Key Agreement Protocol allows use of long exponents that arguably make certain calculations unnecessarily expensive, because the 1996 van Oorschot and Wiener paper found that "(appropriately) short exponents" can be used when there are adequate subgroup constraints, and these short exponents can lead to less expensive calculations than for long exponents. This issue is different from CVE-2002-20001 because it is based on an observation about exponent size, rather than an observation about numbers that are not public keys. The specific situations in which calculation expense would constitute a server-side vulnerability depend on the protocol (e.g., TLS, SSH, or IKE) and the DHE implementation details. In general, there might be an availability concern because of server-side resource consumption from DHE modular-exponentiation calculations. Finally, it is possible for an attacker to exploit this vulnerability and CVE-2002-20001 together.
Our Official Summary
Investigation is ongoing to determine how this vulnerability impacts our products.
CVE Severity
Status
Ongoing
Affected Products & Versions
- Palette VerteX airgap 4.5.8
- Palette Enterprise airgap 4.5.8
- Palette VerteX 4.5.8
- Palette Enterprise 4.5.8
Revision History
- 1.0 11/7/2024 Initial Publication
- 2.0 11/7/2024 Added Palette VerteX airgap, Palette Enterprise airgap, VerteX, and Palette Enterprise 4.5.8 to Affected Products