CVE-2023-45288

CVE Details

Release Date:2024-04-03

Description


An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.

See more information about CVE-2023-45288 from MITRE CVE dictionary and NIST NVD


CVSS v3.0 metrics


NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score: 7.5 Base Metrics: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector: Network Attack Complexity: Low
Privileges Required: None User Interaction: None
Scope: Unchanged Confidentiality Impact: None
Integrity Impact: None Availability Impact: High

Errata information


PlatformErrataRelease Date
Oracle Linux version 8 (delve)ELSA-2024-19622024-04-23
Oracle Linux version 8 (delve)ELSA-2024-32592024-05-29
Oracle Linux version 8 (git-lfs)ELSA-2024-26992024-05-08
Oracle Linux version 8 (git-lfs)ELSA-2024-33462024-05-29
Oracle Linux version 8 (go-toolset)ELSA-2024-19622024-04-23
Oracle Linux version 8 (go-toolset)ELSA-2024-32592024-05-29
Oracle Linux version 8 (golang)ELSA-2024-19622024-04-23
Oracle Linux version 8 (golang)ELSA-2024-32592024-05-29
Oracle Linux version 9 (git-lfs)ELSA-2024-27242024-05-07
Oracle Linux version 9 (golang)ELSA-2024-19632024-04-23
Oracle Linux version 9 (golang)ELSA-2024-25622024-05-07



This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team

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