CVE-2022-1941

Improper Restriction of Operations within the Bounds of a Memory Buffer in pypi/protobuf

Identifiers

CVE-2022-1941, GHSA-8gq9-2x98-w8hf

Package Slug

pypi/protobuf

Vulnerability

Improper Restriction of Operations within the Bounds of a Memory Buffer

Description

A parsing vulnerability for the MessageSet type in the ProtocolBuffers versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 3.21.5 for protobuf-cpp, and versions prior to and including 3.16.1, 3.17.3, 3.18.2, 3.19.4, 3.20.1 and 4.21.5 for protobuf-python can lead to out of memory failures. A specially crafted message with multiple key-value per elements creates parsing issues, and can lead to a Denial of Service against services receiving unsanitized input. We recommend upgrading to versions 3.18.3, 3.19.5, 3.20.2, 3.21.6 for protobuf-cpp and 3.18.3, 3.19.5, 3.20.2, 4.21.6 for protobuf-python. Versions for 3.16 and 3.17 are no longer updated.

Affected Versions

All versions before 3.18.3, all versions starting from 3.19.0 before 3.19.5, all versions starting from 3.20.0 before 3.20.2, all versions starting from 4.0.0 before 4.21.6

Solution

Upgrade to versions 3.18.3, 3.19.5, 3.20.2, 4.21.6 or above.

Last Modified

2022-09-27

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