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CVE-2012-2417

Status Candidate

Overview

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.

Related Files

Mandriva Linux Security Advisory 2013-120
Posted Apr 11, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-120 - 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. Note: any ElGamal keys that have previously been generated by PyCrypto should be regenerated after installing this update.

tags | advisory
systems | linux, mandriva
advisories | CVE-2012-2417
SHA-256 | 6c5ced1cb976616b44a9b19f8d6c624360fe034c06be3fdeeb2c1cd174c8a0f9
Mandriva Linux Security Advisory 2012-117
Posted Jul 28, 2012
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2012-117 - 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. The updated packages have been patched to correct this issue.

tags | advisory
systems | linux, mandriva
advisories | CVE-2012-2417
SHA-256 | a257bef09bc054b9c2ddf00af72cb709c6daf86ed9863e285ba7b71a0ed7c536
Ubuntu Security Notice USN-1484-1
Posted Jun 29, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1484-1 - It was discovered that PyCrypto produced inappropriate prime numbers when generating ElGamal keys. An attacker could use this flaw to facilitate brute-forcing of ElGamal encryption keys.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2012-2417
SHA-256 | 04fbced1a91721f7ab5f380ac1b24b6b95bb3cc42c528814abcc82b70cc1f2dd
Gentoo Linux Security Advisory 201206-23
Posted Jun 24, 2012
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201206-23 - PyCrypto generates weak ElGamal keys. Versions less than 2.6 are affected.

tags | advisory
systems | linux, gentoo
advisories | CVE-2012-2417
SHA-256 | 14546806126e183ad80b1ab1d5a94616b305357e865f36bf6b75eb0ea38f9a96
Debian Security Advisory 2502-1
Posted Jun 24, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2502-1 - It was discovered that that the ElGamal code in PythonCrypto, a collection of cryptographic algorithms and protocols for Python used insecure insufficient prime numbers in key generation, which lead to a weakened signature or public key space, allowing easier brute force attacks on such keys.

tags | advisory, protocol, python
systems | linux, debian
advisories | CVE-2012-2417
SHA-256 | 6d4508421551948092f3a47c494a7261e2fff7ccbfc0297c1626d54727c95efa
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