Headline
GHSA-hrf3-622q-8366: Unsafe yaml deserialization in NVFlare
Impact
NVFLARE contains a vulnerability in its utils module, where YAML files are loaded via yaml.load() instead of yaml.safe_load(). The deserialization of Untrusted Data, may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.
All versions before 2.1.2 are affected. CVSS Score = 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Patches
The patch will be included in nvflare==2.1.2
Workarounds
Change yaml.load() to yaml.safe_load()
Additional information
Issue Found by: Oliver Sellwood (@Nintorac)
Impact
NVFLARE contains a vulnerability in its utils module, where YAML files are loaded via yaml.load() instead of yaml.safe_load(). The deserialization of Untrusted Data, may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.
All versions before 2.1.2 are affected.
CVSS Score = 9.8
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Patches
The patch will be included in nvflare==2.1.2
Workarounds
Change yaml.load() to yaml.safe_load()
Additional information
Issue Found by: Oliver Sellwood (@Nintorac)
References
- GHSA-hrf3-622q-8366
Related news
NVFLARE, versions prior to 2.1.2, contains a vulnerability in its utils module, where YAML files are loaded via yaml.load() instead of yaml.safe_load(). The deserialization of Untrusted Data, may allow an unprivileged network attacker to cause Remote Code Execution, Denial Of Service, and Impact to both Confidentiality and Integrity.