CVE-2020-14343

Summary

CVECVE-2020-14343
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-02-09 21:15:00 UTC
Updated2023-07-06 18:15:00 UTC
DescriptionA vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. This flaw allows an attacker to execute arbitrary code on the system by abusing the python/object/new constructor. This flaw is due to an incomplete fix for CVE-2020-1747.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Oracle Communications Cloud Native Core Network Function Cloud Native Environment 1.10.0 All All All
Application Oracle Communications Cloud Native Core Network Function Cloud Native Environment 22.1.0 All All All
Application Pyyaml Pyyaml All All All All
Application Pyyaml Pyyaml All All All All

References

ReferenceSourceLinkTags
Oracle Critical Patch Update Advisory - April 2022 MISC www.oracle.com
Resolve CVE for PyYAML - CVE-2020-14343 · Issue #2252 · SeldonIO/seldon-core · GitHub CONFIRM github.com
.load() and FullLoader still vulnerable to fairly trivial RCE · Issue #420 · yaml/pyyaml · GitHub MISC github.com
1860466 – (CVE-2020-14343) CVE-2020-14343 PyYAML: incomplete fix for CVE-2020-1747 MISC bugzilla.redhat.com Issue Tracking, Third Party Advisory
Oracle Critical Patch Update Advisory - July 2022 N/A www.oracle.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159289 Oracle Enterprise Linux Security Update for python38:3.8 and python38-devel:3.8 (ELSA-2021-2583)
  • 198358 Ubuntu Security Notification for PyYAML vulnerability (USN-4940-1)
  • 239464 Red Hat Update for python38:3.8 and python38-devel:3.8 (RHSA-2021:2583)
  • 239895 Red Hat Update for Satellite 6.10 (RHSA-2021:4702)
  • 296067 Oracle Solaris 11.4 Support Repository Update (SRU) 33.94.0 Missing (CPUAPR2021)
  • 378427 Oracle PeopleSoft Enterprise PeopleTools Product Multiple Vulnerabilities (CPUAPR2023)
  • 500784 Alpine Linux Security Update for py3-yaml
  • 501479 Alpine Linux Security Update for py3-yaml
  • 501772 Alpine Linux Security Update for py3-yaml
  • 504337 Alpine Linux Security Update for py3-yaml
  • 670312 EulerOS Security Update for PyYAML (EulerOS-SA-2021-1912)
  • 670367 EulerOS Security Update for PyYAML (EulerOS-SA-2021-1958)
  • 670388 EulerOS Security Update for PyYAML (EulerOS-SA-2021-1937)
  • 690117 Free Berkeley Software Distribution (FreeBSD) Security Update for pyyaml (c7ec6375-c3cf-11eb-904f-14dae9d5a9d2)
  • 710880 Gentoo Linux PyYAML Arbitrary Code Execution Vulnerability (GLSA 202402-33)
  • 751033 SUSE Enterprise Linux Security Update for python-PyYAML (SUSE-SU-2021:2818-1)
  • 752486 SUSE Enterprise Linux Security Update for python-PyYAML (SUSE-SU-2022:2841-1)
  • 904855 Common Base Linux Mariner (CBL-Mariner) Security Update for mozjs60 (12376)
  • 904900 Common Base Linux Mariner (CBL-Mariner) Security Update for PyYAML (12296)
  • 905102 Common Base Linux Mariner (CBL-Mariner) Security Update for PyYAML (12456)
  • 907556 Common Base Linux Mariner (CBL-Mariner) Security Update for PyYAML (31782-1)
  • 940207 AlmaLinux Security Update for python38:3.8 and python38-devel:3.8 (ALSA-2021:2583)
  • 960084 Rocky Linux Security Update for python38:3.8 and python38-devel:3.8 (RLSA-2021:2583)
  • 980646 Python (pip) Security Update for PyYAML (GHSA-8q59-q68h-6hv4)
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