CVE-2023-50247
Vulnerability from cvelistv5
Published
2023-12-12 19:56
Modified
2024-08-02 22:09
Severity ?
3.7 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. The QUIC stack (quicly), as used by H2O up to commit 43f86e5 (in version 2.3.0-beta and prior), is susceptible to a state exhaustion attack. When H2O is serving HTTP/3, a remote attacker can exploit this vulnerability to progressively increase the memory retained by the QUIC stack. This can eventually cause H2O to abort due to memory exhaustion. The vulnerability has been resolved in commit d67e81d03be12a9d53dc8271af6530f40164cd35. HTTP/1 and HTTP/2 are not affected by this vulnerability as they do not use QUIC. Administrators looking to mitigate this issue without upgrading can disable HTTP/3 support.
References
security-advisories@github.comhttps://github.com/h2o/h2o/commit/d67e81d03be12a9d53dc8271af6530f40164cd35Patch
security-advisories@github.comhttps://github.com/h2o/h2o/security/advisories/GHSA-2ch5-p59c-7mv6Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/h2o/h2o/commit/d67e81d03be12a9d53dc8271af6530f40164cd35Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/h2o/h2o/security/advisories/GHSA-2ch5-p59c-7mv6Patch, Vendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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}


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