[Secure-testing-team] Bug#882012: python-pysaml2: CVE-2017-1000246: Reuse of AES initialization vector in AESCipher / UsernamePasswordMako / Server

[Salvatore Bonaccorso]

Source: python-pysaml2
Version: 3.0.0-5
Severity: important
Tags: security upstream
Forwarded: https://github.com/rohe/pysaml2/issues/417

Hi,

the following vulnerability was published for python-pysaml2.

CVE-2017-1000246[0]:
| Python package pysaml2 version 4.4.0 and earlier reuses the
| initialization vector across encryptions in the IDP server, resulting
| in weak encryption of data.

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2017-1000246
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000246
[1] https://github.com/rohe/pysaml2/issues/417

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore