High severity · published Sep 10, 2021
CVE-2021-39207
parlai is a framework for training and evaluating AI models on a variety of openly available dialogue datasets
8.8
CVSS
1.8%
EPSS
No
On KEV
Description
parlai is a framework for training and evaluating AI models on a variety of openly available dialogue datasets. In affected versions the package is vulnerable to YAML deserialization attack caused by unsafe loading which leads to Arbitary code execution. This security bug is patched by avoiding unsafe loader users should update to version above v1.1.0. If upgrading is not possible then users can change the Loader used to SafeLoader as a workaround. See commit 507d066ef432ea27d3e201da08009872a2f37725 for details.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
Parlai · Facebook
before 1.1.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39207
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39207
Patch
https://github.com/facebookresearch/ParlAI/commit/4374fa2aba383db6526ab36e939eb1cf8ef99879
Patch
https://github.com/facebookresearch/ParlAI/commit/507d066ef432ea27d3e201da08009872a2f37725
Patch
https://github.com/facebookresearch/ParlAI/security/advisories/GHSA-m87f-9fvv-2mgg
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