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.

CVSS v3.0 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3.0 : MEDIUM

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
http://www.openwall.com/lists/oss-security/2016/01/05/3	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/01/05/1	Mailing List Third Party Advisory
https://blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/	Exploit Third Party Advisory
https://bitbucket.org/sybren/python-rsa/pull-requests/14/security-fix-bb06-attack-in-verify-by/diff	Patch Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175897.html	Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175942.html	Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-01/msg00032.html	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/79829	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

cpe:2.3:a:python:rsa:*:*:*:*:*:python:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:22:::::::*
	cpe:2.3:o:fedoraproject:fedora:23:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:opensuse:13.2:::::::*
	cpe:2.3:o:opensuse:opensuse:13.1:::::::*
	cpe:2.3:o:opensuse:leap:42.1:::::::*

Information

Published : 2016-01-13 07:59

Updated : 2019-05-31 10:27

NVD link : CVE-2016-1494

Mitre link : CVE-2016-1494

JSON object : View

CWE

CWE-20

Improper Input Validation

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Products Affected

opensuse

opensuse
leap

python

rsa

fedoraproject

fedora

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