SUSE SLES12 Security Update : python36 (SUSE-SU-2021:3486-1)

medium Nessus Plugin ID 154302
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3486-1 advisory.

- There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information belonging to the other user that they would not normally be able to access. The highest risk of this flaw is to data confidentiality. This flaw affects Python versions before 3.8.9, Python versions before 3.9.3 and Python versions before 3.10.0a7. (CVE-2021-3426)

- Denial of service when identifying crafted invalid RFCs [fedora-all] (CVE-2021-3733)

- client can enter an infinite loop on a 100 Continue response from the server [fedora-all] (CVE-2021-3737)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected libpython3_6m1_0, python36 and / or python36-base packages.

See Also

https://bugzilla.suse.com/1180125

https://bugzilla.suse.com/1183374

https://bugzilla.suse.com/1183858

https://bugzilla.suse.com/1185588

https://bugzilla.suse.com/1189241

https://bugzilla.suse.com/1189287

http://www.nessus.org/u?7088fce6

https://www.suse.com/security/cve/CVE-2021-3426

https://www.suse.com/security/cve/CVE-2021-3733

https://www.suse.com/security/cve/CVE-2021-3737

Plugin Details

Severity: Medium

ID: 154302

File Name: suse_SU-2021-3486-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/21/2021

Updated: 10/29/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-3426

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.7

Temporal Score: 2

Vector: AV:A/AC:L/Au:S/C:P/I:N/A:N

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 5

Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:libpython3_6m1_0, p-cpe:/a:novell:suse_linux:python36, p-cpe:/a:novell:suse_linux:python36-base, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 10/20/2021

Vulnerability Publication Date: 4/7/2021

Reference Information

CVE: CVE-2021-3426, CVE-2021-3733, CVE-2021-3737

SuSE: SUSE-SU-2021:3486-1

IAVA: 2021-A-0263, 2021-A-0497