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CVE-2014-2525

libyaml: heap-based buffer overflow when parsing URLs

Heap-based buffer overflow in the yaml_parser_scan_uri_escapes function in LibYAML before 0.1.6 allows context-dependent attackers to execute arbitrary code via a long sequence of percent-encoded characters in a URI in a YAML file.

CVSS 2.0 · 6.8 Medium EPSS 8.8% KEV · Not listed
Vendors
Opensuse Pyyaml Redhat
Products
Leap Opensuse Libyaml and 3 more
CVE-2014-9130

libyaml: assert failure when processing wrapped strings

scanner.c in LibYAML 0.1.5 and 0.1.6, as used in the YAML-LibYAML (aka YAML-XS) module for Perl, allows context-dependent attackers to cause a denial of service (assertion failure and crash) via vectors involving line-wrapping.

CVSS 2.0 · 5.0 Medium EPSS 13.2% KEV · Not listed
Vendors
Pyyaml Redhat
Products
Libyaml Enterprise Linux Openstack and 1 more
CVE-2013-6393

libyaml: heap-based buffer overflow when parsing YAML tags

The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow.

CVSS 2.0 · 6.8 Medium EPSS 7.4% KEV · Not listed
Vendors
Canonical Debian Opensuse and 2 more
Products
Ubuntu Linux Debian Linux Leap and 5 more
CVE-2020-1747

PyYAML: arbitrary command execution through python/object/new when FullLoader is used

A vulnerability was discovered in the PyYAML library in versions before 5.3.1, 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. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.

CVSS 3.1 · 9.8 Critical EPSS 5.4% KEV · Not listed
Vendors
Fedoraproject Opensuse Oracle and 2 more
Products
Fedora Leap Communications Cloud Native Core Network Function Cloud Native Environment and 2 more
CVE-2020-14343

PyYAML: incomplete fix for CVE-2020-1747

A 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.

CVSS 3.1 · 9.8 Critical EPSS 6.2% KEV · Not listed
Vendors
Oracle Pyyaml Redhat
Products
Communications Cloud Native Core Network Function Cloud Native Environment Pyyaml Enterprise Linux and 2 more
CVE-2019-20477

PyYAML: command execution through python/object/apply constructor in FullLoader

PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.

CVSS 3.1 · 9.8 Critical EPSS 5.1% KEV · Not listed
Vendors
Fedoraproject Pyyaml Redhat
Products
Fedora Pyyaml Enterprise Linux and 1 more
CVE-2017-18342

PyYAML: yaml.load() API could execute arbitrary code

In PyYAML before 5.1, the yaml.load() API could execute arbitrary code if used with untrusted data. The load() function has been deprecated in version 5.1 and the 'UnsafeLoader' has been introduced for backward compatibility with the function.

CVSS 3.1 · 9.8 Critical EPSS 5.6% KEV · Not listed
Vendors
Fedoraproject Pyyaml
Products
Fedora Pyyaml