F5-K000150784: Medium severity f5 traffix systems signaling delivery controller vulnerability
Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Impact summary: A timing side-channel in ECDSA signature computations could allow recovering the private key by an attacker. However, measuring the timing would require either local access to the signing application or a very fast network connection with low latency. There is a timing signal of around 300 nanoseconds when the top word of the inverted ECDSA nonce value is zero. This can happen with significant probability only for some of the supported elliptic curves. In particular the NIST P-521 curve is affected. To be able to measure this leak, the attacker process must either be located in the same physical computer or must have a very fast network connection with low latency. For that reason the severity of this vulnerability is Low. The FIPS modules in 3.4, 3.3, 3.2, 3.1 and 3.0 are affected by this issue.
Affected Software
Event History
Frequently Asked Questions
What is the severity of F5-K000150784?
The severity of F5-K000150784 is high due to the potential exposure of private keys through a timing side-channel vulnerability.
How do I fix F5-K000150784?
To fix F5-K000150784, apply the latest security patches provided by F5 for Traffix SDC version 5.2.0.
What software is affected by F5-K000150784?
F5-K000150784 affects F5 Traffix Systems Signaling Delivery Controller version 5.2.0.
What is a timing side-channel in the context of F5-K000150784?
A timing side-channel in F5-K000150784 allows attackers to potentially recover private keys by measuring the time taken for ECDSA signature computations.
Is the vulnerability F5-K000150784 exploitable remotely?
Yes, the vulnerability F5-K000150784 could be potentially exploited remotely if an attacker can measure the timing of ECDSA operations.