PT-2019-18079 · Libyaml+2 · Yaml-Cpp+2

Wcventure · Published 2019-01-15 · Updated 2023-04-03 · CVE-2019-6292

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions yaml-cpp (aka LibYaml-C++) version 0.6.2

Description An issue in singledocparser.cpp causes a stack exhaustion problem due to recursive stack frames in functions like HandleCompactMap, HandleMap, HandleFlowSequence, HandleSequence, and HandleNode. This could allow remote attackers to cause a denial-of-service.

Recommendations For yaml-cpp (aka LibYaml-C++) version 0.6.2, consider disabling the recursive parsing functionality in singledocparser.cpp as a temporary workaround until a patch is available. Restrict access to the HandleCompactMap, HandleMap, HandleFlowSequence, HandleSequence, and HandleNode functions to minimize the risk of exploitation.

Exploit

Fix

DoS

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

ALT-PU-2020-1758

AZL-7009

CVE-2019-6292

OPENSUSE-SU-2022:1073-1

OPENSUSE-SU-2022_1073-1

SUSE-SU-2022:1072-1

SUSE-SU-2022:1073-1

SUSE-SU-2022:1073-2

SUSE-SU-2023:1740-3

Affected Products

Alt Linux

Suse

Yaml-Cpp

References · 27

• 🔥 https://github.com/jbeder/yaml-cpp/issues/657 · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2023:1740-3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-6292 · Security Note
• https://ubuntu.com/security/CVE-2019-6292 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-7009 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-6292 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2022:1073-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-6292 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-6292 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:1073-2 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-6292 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:1072-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-6292 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2022:1073-1 · Vendor Advisory
• https://suse.com/support/update/announcement/2022/suse-su-20221072-1 · Note