UBUNTU-CVE-2023-32731
See a problem?- Source
- https://ubuntu.com/security/notices/UBUNTU-CVE-2023-32731
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-32731.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-32731
- Related
- Published
- 2023-06-09T11:15:00Z
- Modified
- 2023-06-09T11:15:00Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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
- References
Affected packages
Ubuntu:Pro:16.04:LTS / grpc
Package
- Name
- grpc
Ubuntu:Pro:18.04:LTS / grpc
Package
- Name
- grpc
Ubuntu:20.04:LTS / grpc
Package
- Name
- grpc
Ubuntu:22.04:LTS / grpc
Package
- Name
- grpc