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
Configurations

Configuration 1 (hide)

cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:*

History

21 Nov 2024, 08:03

Type Values Removed Values Added
References () https://github.com/grpc/grpc/pull/32309 - Patch () https://github.com/grpc/grpc/pull/32309 - Patch
References () https://github.com/grpc/grpc/pull/33005 - Patch () https://github.com/grpc/grpc/pull/33005 - Patch
CVSS v2 : unknown
v3 : 7.5
v2 : unknown
v3 : 7.4

15 Jun 2023, 22:18

Type Values Removed Values Added
First Time Grpc grpc
Grpc
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
References (MISC) https://github.com/grpc/grpc/pull/32309 - (MISC) https://github.com/grpc/grpc/pull/32309 - Patch
References (MISC) https://github.com/grpc/grpc/pull/33005 - (MISC) https://github.com/grpc/grpc/pull/33005 - Patch
CWE NVD-CWE-Other
CPE cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:*

13 Jun 2023, 16:15

Type Values Removed Values Added
References
  • (MISC) https://github.com/grpc/grpc/pull/33005 -
Summary 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/32309 https://github.com/grpc/grpc/pull/32309 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

09 Jun 2023, 11:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-06-09 11:15

Updated : 2024-11-21 08:03


NVD link : CVE-2023-32731

Mitre link : CVE-2023-32731

CVE.ORG link : CVE-2023-32731


JSON object : View

Products Affected

grpc

  • grpc
CWE
CWE-440

Expected Behavior Violation

NVD-CWE-Other