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Botan before 1.10.13 and 1.11.x before 1.11.29 do not use...

High severity Unreviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

No package listedSuggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

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.

References

Published by the National Vulnerability Database May 13, 2016
Published to the GitHub Advisory Database May 17, 2022
Last updated Jan 27, 2023

Severity

High
7.5
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses

CVE ID

CVE-2016-2849

GHSA ID

GHSA-pfgh-27pp-8vx8

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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