Home/CVE/The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a sm
CVE

CVE-2016-1494

The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a sm

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 · CVSS 5.3 EPSS 0.03132
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

4
python rsa< 3.3
fedoraproject fedoraall versions
opensuse leapall versions
opensuseall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI rsa MODERATE fixed in 3.3
⚠

Public Exploits & PoCs

1
pocblog.filippo.io · bleichenbacher-06-signature-forgery-in-python-rsablog.filippo.io
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Jan 2016 · 03:59 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
⚑

Vendor Advisories

2
msrcCVE-2016-1494
suse-csafSUSE-SU-2016:0107-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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 ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/01/05/1Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/01/05/3Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/79829Third Party AdvisoryVDB Entry
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