Vulnerabilities (CVE)

Filtered by vendor Nghttp2 Subscribe
Filtered by product Nghttp2
Total 6 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-44487 32 Akka, Amazon, Apache and 29 more 311 Http Server, Opensearch Data Prepper, Apisix and 308 more 2024-06-27 N/A 7.5 HIGH
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
CVE-2023-35945 2 Envoyproxy, Nghttp2 2 Envoy, Nghttp2 2023-12-10 N/A 7.5 HIGH
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the `GOAWAY` frame skips de-allocation of the bookkeeping structure and pending compressed header. The error return [code path] is taken if connection is already marked for not sending more requests due to `GOAWAY` frame. The clean-up code is right after the return statement, causing memory leak. Denial of service through memory exhaustion. This vulnerability was patched in versions(s) 1.26.3, 1.25.8, 1.24.9, 1.23.11.
CVE-2020-11080 6 Debian, Fedoraproject, Nghttp2 and 3 more 10 Debian Linux, Fedora, Nghttp2 and 7 more 2023-12-10 5.0 MEDIUM 7.5 HIGH
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
CVE-2016-1544 2 Fedoraproject, Nghttp2 2 Fedora, Nghttp2 2023-12-10 2.1 LOW 3.3 LOW
nghttp2 before 1.7.1 allows remote attackers to cause a denial of service (memory exhaustion).
CVE-2018-1000168 3 Debian, Nghttp2, Nodejs 3 Debian Linux, Nghttp2, Node.js 2023-12-10 5.0 MEDIUM 7.5 HIGH
nghttp2 version >= 1.10.0 and nghttp2 <= v1.31.0 contains an Improper Input Validation CWE-20 vulnerability in ALTSVC frame handling that can result in segmentation fault leading to denial of service. This attack appears to be exploitable via network client. This vulnerability appears to have been fixed in >= 1.31.1.
CVE-2015-8659 2 Apple, Nghttp2 5 Iphone Os, Mac Os X, Tvos and 2 more 2023-12-10 10.0 HIGH 10.0 CRITICAL
The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug.