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openSUSE 15 Security Update : yaml-cpp (openSUSE-SU-2022:1073-1)

medium Nessus Plugin ID 159478

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Synopsis

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

Description

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2022:1073-1 advisory.

 - The Scanner::EnsureTokensInQueue function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.
 (CVE-2018-20573)

 - The SingleDocParser::HandleFlowMap function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.
 (CVE-2018-20574)

 - The SingleDocParser::HandleFlowSequence function in yaml-cpp (aka LibYaml-C++) 0.6.2 allows remote attackers to cause a denial of service (stack consumption and application crash) via a crafted YAML file.
 (CVE-2019-6285)

 - An issue was discovered in singledocparser.cpp in yaml-cpp (aka LibYaml-C++) 0.6.2. Stack Exhaustion occurs in YAML::SingleDocParser, and there is a stack consumption problem caused by recursive stack frames: HandleCompactMap, HandleMap, HandleFlowSequence, HandleSequence, HandleNode. Remote attackers could leverage this vulnerability to cause a denial-of-service via a cpp file. (CVE-2019-6292)

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

Solution

Update the affected libyaml-cpp0_6 and / or yaml-cpp-devel packages.

See Also

https://bugzilla.suse.com/1121227

https://bugzilla.suse.com/1121230

https://bugzilla.suse.com/1122004

https://bugzilla.suse.com/1122021

http://www.nessus.org/u?1c493aac

https://www.suse.com/security/cve/CVE-2018-20573

https://www.suse.com/security/cve/CVE-2018-20574

https://www.suse.com/security/cve/CVE-2019-6285

https://www.suse.com/security/cve/CVE-2019-6292

Plugin Details

Severity: Medium

ID: 159478

File Name: openSUSE-2022-1073-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 4/4/2022

Updated: 11/3/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2019-6292

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:15.3, p-cpe:/a:novell:opensuse:libyaml-cpp0_6, p-cpe:/a:novell:opensuse:yaml-cpp-devel

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: 4/1/2022

Vulnerability Publication Date: 12/28/2018

Reference Information

CVE: CVE-2018-20573, CVE-2018-20574, CVE-2019-6285, CVE-2019-6292