CVE-2016-2849: Infoleak
First published: Fri May 13 2016(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian | =8.0 | |
| Fedora | =24 | |
| Botan | =1.10.12 | |
| Botan | =1.11.0 | |
| Botan | =1.11.1 | |
| Botan | =1.11.2 | |
| Botan | =1.11.3 | |
| Botan | =1.11.4 | |
| Botan | =1.11.5 | |
| Botan | =1.11.6 | |
| Botan | =1.11.7 | |
| Botan | =1.11.8 | |
| Botan | =1.11.9 | |
| Botan | =1.11.10 | |
| Botan | =1.11.11 | |
| Botan | =1.11.12 | |
| Botan | =1.11.13 | |
| Botan | =1.11.14 | |
| Botan | =1.11.15 | |
| Botan | =1.11.16 | |
| Botan | =1.11.17 | |
| Botan | =1.11.18 | |
| Botan | =1.11.19 | |
| Botan | =1.11.20 | |
| Botan | =1.11.21 | |
| Botan | =1.11.22 | |
| Botan | =1.11.23 | |
| Botan | =1.11.24 | |
| Botan | =1.11.25 | |
| Botan | =1.11.26 | |
| Botan | =1.11.27 | |
| Botan | =1.11.28 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2016-2849?
CVE-2016-2849 has a high severity rating due to its potential for enabling remote attackers to exploit timing side-channel vulnerabilities.
Which software versions are affected by CVE-2016-2849?
CVE-2016-2849 affects Botan versions prior to 1.10.13 and versions in the 1.11.x series before 1.11.29.
How do I fix CVE-2016-2849?
To fix CVE-2016-2849, update Botan to version 1.10.13 or 1.11.29 or later.
What type of attack does CVE-2016-2849 allow?
CVE-2016-2849 allows remote attackers to perform a timing side-channel attack potentially leading to exposure of ECDSA secret keys.
Is CVE-2016-2849 a local or remote vulnerability?
CVE-2016-2849 is classified as a remote vulnerability, as it can be exploited by attackers over a network.
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/severity
- agent/last-modified-date
- agent/author
- agent/references
- agent/type
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/debian
- canonical/debian
- version/debian/8.0
- vendor/fedoraproject
- canonical/fedora
- version/fedora/24
- vendor/botan project
- canonical/botan
- version/botan/1.10.12
- version/botan/1.11.0
- version/botan/1.11.1
- version/botan/1.11.2
- version/botan/1.11.3
- version/botan/1.11.4
- version/botan/1.11.5
- version/botan/1.11.6
- version/botan/1.11.7
- version/botan/1.11.8
- version/botan/1.11.9
- version/botan/1.11.10
- version/botan/1.11.11
- version/botan/1.11.12
- version/botan/1.11.13
- version/botan/1.11.14
- version/botan/1.11.15
- version/botan/1.11.16
- version/botan/1.11.17
- version/botan/1.11.18
- version/botan/1.11.19
- version/botan/1.11.20
- version/botan/1.11.21
- version/botan/1.11.22
- version/botan/1.11.23
- version/botan/1.11.24
- version/botan/1.11.25
- version/botan/1.11.26
- version/botan/1.11.27
- version/botan/1.11.28