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Debian DSA-4539-1 : openssl - security update

medium Nessus Plugin ID 129506

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Synopsis

The remote Debian host is missing a security-related update.

Description

Three security issues were discovered in OpenSSL: A timing attack against ECDSA, a padding oracle in PKCS7_dataDecode() and CMS_decrypt_set1_pkey() and it was discovered that a feature of the random number generator (RNG) intended to protect against shared RNG state between parent and child processes in the event of a fork() syscall was not used by default.

Solution

Upgrade the openssl packages.

For the oldstable distribution (stretch), these problems have been fixed in version 1.1.0l-1~deb9u1.

For the stable distribution (buster), these problems have been fixed in version 1.1.1d-0+deb10u1.

See Also

https://security-tracker.debian.org/tracker/source-package/openssl

https://packages.debian.org/source/stretch/openssl

https://packages.debian.org/source/buster/openssl

https://www.debian.org/security/2019/dsa-4539

Plugin Details

Severity: Medium

ID: 129506

File Name: debian_DSA-4539.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/2/2019

Updated: 4/22/2024

Supported Sensors: 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: 3.7

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

CVSS Score Source: CVE-2019-1549

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:openssl

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/1/2019

Vulnerability Publication Date: 9/10/2019

Reference Information

CVE: CVE-2019-1547, CVE-2019-1549, CVE-2019-1563

DSA: 4539