YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes
YAML versions before 1.30 for Perl allow a loaded document to trigger the DESTROY method of arbitrary classes. A perl/hash:Class tag blesses a hash into the class it names. The document supplies the object's fields, and Perl calls DESTROY when it goes out of scope. What DESTROY does depends on the classes the process has loaded. With File::Temp::Dir from core Perl, it can delete a directory tree the document names.
CVE-2017-20285
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2017-20285
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/ingydotnet/yaml-pm",
"modules": [
"YAML"
],
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.30",
"versionType": "custom"
}
],
"packageURL": "pkg:cpan/YAML",
"packageName": "YAML",
"programFiles": [
"lib/YAML.pm",
"lib/YAML/Loader.pm",
"lib/YAML/Types.pm"
],
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"programRoutines": [
{
"name": "YAML::Loader::_parse_explicit"
},
{
"name": "YAML::Type::code::yaml_load"
},
{
"name": "YAML::Type::regexp::yaml_load"
}
]
}
]- Related CVEs
- CVE-2017-20285
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #9415 · Revision 1
- Added to Heist Feed
- Publisher date