Information Exposure Affecting botan1.10 package, versions <1.10.5-1+deb7u1ubuntu0.14.04.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1404-BOTAN110-320560
- published13 May 2016
- disclosed13 May 2016
Introduced: 13 May 2016
CVE-2016-2849 (opens in a new tab)How to fix?
Upgrade Ubuntu:14.04 botan1.10 to version 1.10.5-1+deb7u1ubuntu0.14.04.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream botan1.10 package and not the botan1.10 package as distributed by Ubuntu.
See How to fix? for Ubuntu:14.04 relevant fixed versions and status.
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
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-2849
- http://www.debian.org/security/2016/dsa-3565
- https://security-tracker.debian.org/tracker/CVE-2016-2849
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183669.html
- https://security.gentoo.org/glsa/201701-23
- http://marc.info/?l=botan-devel&m=146185420505943&w=2
- http://botan.randombit.net/security.html