cloud-init: CVE-2020-8631

Related Vulnerabilities: CVE-2020-8631  

Debian Bug report logs - #951362
cloud-init: CVE-2020-8631

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Reported by: Salvatore Bonaccorso <carnil@debian.org>

Date: Sat, 15 Feb 2020 10:42:01 UTC

Severity: important

Tags: security, upstream

Found in version cloud-init/19.4-1

Forwarded to https://github.com/canonical/cloud-init/pull/204

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Report forwarded to debian-bugs-dist@lists.debian.org, carnil@debian.org, team@security.debian.org, team@security.debian.org, Debian Cloud Team <debian-cloud@lists.debian.org>:
Bug#951362; Package src:cloud-init. (Sat, 15 Feb 2020 10:42:03 GMT) (full text, mbox, link).


Acknowledgement sent to Salvatore Bonaccorso <carnil@debian.org>:
New Bug report received and forwarded. Copy sent to carnil@debian.org, team@security.debian.org, team@security.debian.org, Debian Cloud Team <debian-cloud@lists.debian.org>. (Sat, 15 Feb 2020 10:42:03 GMT) (full text, mbox, link).


Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: cloud-init: CVE-2020-8631
Date: Sat, 15 Feb 2020 11:38:33 +0100
Source: cloud-init
Version: 19.4-1
Severity: important
Tags: security upstream
Forwarded: https://github.com/canonical/cloud-init/pull/204

Hi,

The following vulnerability was published for cloud-init.

CVE-2020-8631[0]:
| cloud-init through 19.4 relies on Mersenne Twister for a random
| password, which makes it easier for attackers to predict passwords,
| because rand_str in cloudinit/util.py calls the random.choice
| function.

AFAIU not yet fixed upstream.

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-2020-8631
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8631
[1] https://github.com/canonical/cloud-init/pull/204

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore



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