CVE-2016-1494
UnknownEPSS 7.05%
Last modified
CVE-2016-1494 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 7.05% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Python | Rsa | < 3.3 |
| Fedoraproject | Fedora | 22 |
| Fedoraproject | Fedora | 23 |
| Opensuse | Leap | 42.1 |
| Opensuse | Opensuse | 13.1 |
| Opensuse | Opensuse | 13.2 |
References
- 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.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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2016-1494?
Severity scoring for CVE-2016-1494 is pending analysis. The EPSS model estimates a 7.05% probability of exploitation in the next 30 days.
How do I fix CVE-2016-1494?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2016-1494?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST