CVE-2023-4785

grpc: Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2023-4785: Lack of e...

CVE-2023-4785 is fixed in 10 products on 1 platform, first by ALAS2023-2023-282, released August 3, 2023. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
n/a
important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0077
55th percentile

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2023-4785: Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected. CVE-2023-32732: gRPC contains a vulnerability whereby a client can cause a termination of connection between a HTTP2 proxy and a gRPC server: a base64 encoding error for `-bin` suffixed headers will result in a disconnection by the gRPC server, but is typically allowed by HTTP2 proxies. We recommend upgrading beyond the commit in https://github.com/grpc/grpc/pull/32309 https://www.google.com/url CVE-2023-32731: When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005

Where it's fixed

ProductFixed inFixReleased
Linux
grpc · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-cpp · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-cpp-debuginfo · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-data · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-debuginfo · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-debugsource · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-devel · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-doc · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-plugins · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023
grpc-plugins-debuginfo · amzn 2023 1.56.2-10.amzn2023 ALAS2023-2023-282 Aug 3, 2023

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