EulerOS Virtualization for ARM 64 3.0.6.0 : python-crypto (EulerOS-SA-2020-1996)

high Nessus Plugin ID 140944
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VPR Score: 5.9

Synopsis

The remote EulerOS Virtualization for ARM 64 host is missing multiple security updates.

Description

According to the versions of the python-crypto package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

- Heap-based buffer overflow in the ALGnew function in block_templace.c in Python Cryptography Toolkit (aka pycrypto) allows remote attackers to execute arbitrary code as demonstrated by a crafted iv parameter to cryptmsg.py.(CVE-2013-7459)

- lib/Crypto/PublicKey/ElGamal.py in PyCrypto through 2.6.1 generates weak ElGamal key parameters, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack).
The Decisional Diffie-Hellman (DDH) assumption does not hold for PyCrypto's ElGamal implementation.(CVE-2018-6594)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected python-crypto packages.

See Also

http://www.nessus.org/u?f786b7d6

Plugin Details

Severity: High

ID: 140944

File Name: EulerOS_SA-2020-1996.nasl

Version: 1.4

Type: local

Published: 9/29/2020

Updated: 1/6/2021

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

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

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:python2-crypto, cpe:/o:huawei:euleros:uvp:3.0.6.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/25/2020

Reference Information

CVE: CVE-2013-7459, CVE-2018-6594