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SUSE SLED15 / SLES15 Security Update : python-rsa (SUSE-SU-2021:2008-1)

high Nessus Plugin ID 150885

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Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLED15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2021:2008-1 advisory.

 - Python-RSA before 4.1 ignores leading '\0' bytes during decryption of ciphertext. This could conceivably have a security-relevant impact, e.g., by helping an attacker to infer that an application uses Python- RSA, or if the length of accepted ciphertext affects application behavior (such as by causing excessive memory allocation). (CVE-2020-13757)

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 python2-rsa and / or python3-rsa packages.

See Also

https://bugzilla.suse.com/1172389

https://www.suse.com/security/cve/CVE-2020-13757

http://www.nessus.org/u?70acbfeb

Plugin Details

Severity: High

ID: 150885

File Name: suse_SU-2021-2008-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 6/21/2021

Updated: 7/13/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2020-13757

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:python2-rsa, p-cpe:/a:novell:suse_linux:python3-rsa, cpe:/o:novell:suse_linux:15

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/17/2021

Vulnerability Publication Date: 6/1/2020

Reference Information

CVE: CVE-2020-13757

SuSE: SUSE-SU-2021:2008-1