VulnerabilityModified
CVE-2016-1494
The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.
MEDIUM 5.3EPSS 7.05%
Does this matter?
Lower severity and a low EPSS score (7.05%). Track it; it rarely justifies an emergency change on its own.
Description
The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.
- CVSS 3.0
- 5.3 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- EPSS
- 7.05% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- python/rsa · fedoraproject/fedora · opensuse/leap · opensuse/opensuse
- Source
- cve@mitre.org
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175897.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175942.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00032.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/05/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/05/3Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/79829Third Party Advisory, VDB Entry
- https://bitbucket.org/sybren/python-rsa/pull-requests/14/security-fix-bb06-attack-in-verify-by/diffPatch, Third Party Advisory
- https://blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/Exploit, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175897.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175942.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-01/msg00032.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/05/1Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/05/3Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/79829Third Party Advisory, VDB Entry
- https://bitbucket.org/sybren/python-rsa/pull-requests/14/security-fix-bb06-attack-in-verify-by/diffPatch, Third Party Advisory
- https://blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.