Upstream information

CVE-2016-2849 at MITRE

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.

SUSE information

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 4.96 1.85
Vector AV:N/AC:L/Au:N/C:P/I:N/A:N AV:L/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network Local
Access Complexity Low Medium
Authentication None None
Confidentiality Impact Partial Partial
Integrity Impact None None
Availability Impact None None
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.5
Vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None

This issue is currently rated as having low severity.

SUSE Bugzilla entries: 977420 [RESOLVED / ], 977421 [RESOLVED / INVALID]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Software Development Kit 12 SP1
  • Botan >= 1.10.9-3.1
  • libbotan-1_10-0 >= 1.10.9-3.1
  • libbotan-devel >= 1.10.9-3.1
Patchnames:
SUSE-SLE-SDK-12-SP1-2017-723
SUSE Linux Enterprise Software Development Kit 12 SP2
  • Botan >= 1.10.9-3.1
  • libbotan-1_10-0 >= 1.10.9-3.1
  • libbotan-devel >= 1.10.9-3.1
Patchnames:
SUSE-SLE-SDK-12-SP2-2017-723
openSUSE Tumbleweed
  • libbotan-1_10-1 >= 1.10.13-1.1
  • libbotan-1_10-1-32bit >= 1.10.13-1.1
  • libbotan-devel >= 1.10.13-1.1
  • libbotan-devel-32bit >= 1.10.13-1.1
Patchnames:
openSUSE Tumbleweed GA libbotan-1_10-1


List of planned updates

The following information is the current evaluation information for this security issue. It might neither be accurate nor complete, Use at own risk.
Product(s) Source package
  • SUSE Linux Enterprise SDK 12 GA
Botan