CVE-2023-45288
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- 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
| Platform | Errata | Release Date |
| Oracle Linux version 8 (delve) | ELSA-2024-1962 | 2024-04-23 |
| Oracle Linux version 8 (delve) | ELSA-2024-3259 | 2024-05-29 |
| Oracle Linux version 8 (git-lfs) | ELSA-2024-2699 | 2024-05-08 |
| Oracle Linux version 8 (git-lfs) | ELSA-2024-3346 | 2024-05-29 |
| Oracle Linux version 8 (go-toolset) | ELSA-2024-1962 | 2024-04-23 |
| Oracle Linux version 8 (go-toolset) | ELSA-2024-3259 | 2024-05-29 |
| Oracle Linux version 8 (golang) | ELSA-2024-1962 | 2024-04-23 |
| Oracle Linux version 8 (golang) | ELSA-2024-3259 | 2024-05-29 |
| Oracle Linux version 9 (git-lfs) | ELSA-2024-2724 | 2024-05-07 |
| Oracle Linux version 9 (golang) | ELSA-2024-1963 | 2024-04-23 |
| Oracle Linux version 9 (golang) | ELSA-2024-2562 | 2024-05-07 |
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