Bug 1524420 (CVE-2017-1000246) - CVE-2017-1000246 python-pysaml2: Reuse of AES initialization vector in AESCipher
Summary: CVE-2017-1000246 python-pysaml2: Reuse of AES initialization vector in AESCipher
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2017-1000246
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1516163
Blocks: 1524421
TreeView+ depends on / blocked
 
Reported: 2017-12-11 13:23 UTC by Andrej Nemec
Modified: 2021-02-17 01:08 UTC (History)
17 users (show)

Fixed In Version:
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Last Closed: 2018-01-04 05:49:55 UTC
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Description Andrej Nemec 2017-12-11 13:23:34 UTC 
It was found that 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.

Upstream issue:

https://github.com/rohe/pysaml2/issues/417
Comment 1 Andrej Nemec 2017-12-11 13:24:14 UTC 
Created python-pysaml2 tracking bugs for this issue:

Affects: fedora-all [bug 1516163]
Comment 3 Andrej Nemec 2018-05-14 12:16:40 UTC 
Statement:

Red Hat Product Security has rated this issue as having security impact of Low for:
* Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
* Red Hat OpenStack Platform 8.0 (Liberty)
* Red Hat OpenStack Platform 9.0 (Mitaka)
* Red Hat OpenStack Platform 10.0 (Newton) 
* Red Hat OpenStack Platform 11.0 (Ocata)
* Red Hat OpenStack Platform 12.0 (Pike)

Although the affected code is present in shipped packages, python-pysaml2 is included only as a dependency of other packages. The affected code cannot be reached in any supported configuration of Red Hat OpenStack Platform.

This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
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