Lindell17 TSS Abort Mishandling
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.6epss 1.1%
from disclosure to weapon6 days
Published on NVDAug 9
1st PoC+6d
exploitation probability
1.1%top 38% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Affected products
Lindell TSS Implementations · Walletpublic PoCs found — 1
githubgithub.com/d0rb/CVE-2023-33242★ 4⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.