Amazon Linux AMI update for python-crypto

1) Cryptographic issues

EUVDB-ID: #VU43979

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-2417

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

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.

Mitigation

Update the affected packages:

i686:
    python-crypto-2.3-6.5.amzn1.i686
    python-crypto-debuginfo-2.3-6.5.amzn1.i686

src:
    python-crypto-2.3-6.5.amzn1.src

x86_64:
    python-crypto-debuginfo-2.3-6.5.amzn1.x86_64
    python-crypto-2.3-6.5.amzn1.x86_64

Vulnerable software versions

Amazon Linux AMI: All versions

External links

http://alas.aws.amazon.com/ALAS-2012-86.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.