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CVE
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CVE-2012-2417Date: (C)2012-06-16   (M)2023-12-22


PyCrypto before 2.6 does not produce appropriate prime numbers when using an ElGamal scheme to generate a key, which reduces the signature space or public key space and makes it easier for attackers to conduct brute force attacks to obtain the private key.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 4.3
Exploit Score: 8.6
Impact Score: 2.9
 
CVSS V2 Metrics:
Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality: NONE
Integrity: PARTIAL
Availability: NONE
  
Reference:
SECUNIA-49263
BID-53687
OSVDB-82279
DSA-2502
FEDORA-2012-8392
FEDORA-2012-8470
FEDORA-2012-8490
MDVSA-2012:117
http://www.openwall.com/lists/oss-security/2012/05/25/1
https://bugs.launchpad.net/pycrypto/+bug/985164
https://github.com/Legrandin/pycrypto/commit/9f912f13df99ad3421eff360d6a62d7dbec755c2
https://github.com/dlitz/pycrypto/blob/373ea760f21701b162e8c4912a66928ee30d401a/ChangeLog
openSUSE-SU-2012:0830
pycrypto-keys-weak-security(75871)

CPE    20
cpe:/a:dlitz:pycrypto:2.4
cpe:/a:dlitz:pycrypto:2.3
cpe:/a:dlitz:pycrypto:1.1:alpha2
cpe:/a:dlitz:pycrypto:2.1.0:beta1
...
CWE    1
CWE-310
OVAL    8
oval:org.secpod.oval:def:302934
oval:org.secpod.oval:def:1601309
oval:org.secpod.oval:def:700919
oval:org.secpod.oval:def:600837
...

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