CVE-2016-2849
high-risk
Published 2016-05-13
Botan before 1.10.13 and 1.11.x before 1.11.29 do not use a constant-time algorithm to perform a modular inverse on the signature nonce k, which might allow remote attackers to obtain ECDSA secret keys via a timing side-channel attack.
Do I need to act?
-
0.58% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Affected Vendors
References (10)
Vendor Advisory
http://botan.randombit.net/security.html
Vendor Advisory
http://marc.info/?l=botan-devel&m=146185420505943&w=2
Vendor Advisory
http://botan.randombit.net/security.html
Vendor Advisory
http://marc.info/?l=botan-devel&m=146185420505943&w=2
51
/ 100
high-risk
Severity
26/34 · High
Exploitability
2/34 · Minimal
Exposure
23/34 · High