CVE - CVE-2023-45288

CVE-ID
CVE-2023-45288	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://security.netapp.com/advisory/ntap-20240419-0009/ FEDORA:FEDORA-2024-ce2eefc399 URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QRYFHIQ6XRKRYBI2F5UESH67BJBQXUPT/ MISC:https://go.dev/cl/576155 URL:https://go.dev/cl/576155 MISC:https://go.dev/issue/65051 URL:https://go.dev/issue/65051 MISC:https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M URL:https://groups.google.com/g/golang-announce/c/YgW0sx8mN3M MISC:https://pkg.go.dev/vuln/GO-2024-2687 URL:https://pkg.go.dev/vuln/GO-2024-2687 MLIST:[oss-security] 20240403 CERT/CC VU#421644: HTTP/2 CONTINUATION frames can be utilized for DoS attacks URL:http://www.openwall.com/lists/oss-security/2024/04/03/16 MLIST:[oss-security] 20240405 Go 1.22.2 and 1.21.9 (CVE-2023-45288 HTTP/2 CONTINUATION issue) URL:http://www.openwall.com/lists/oss-security/2024/04/05/4
Assigning CNA
Go Project
Date Record Created
20231006	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20231006)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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