CVE-2023-26964 — Allocation of Resources Without Limits or Throttling in H2

CWE-770 — Allocation of Resources Without Limits or Throttling7 documents5 sources

Severity

7.5HIGHNVD

EPSS

0.3%

top 48.21%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

H2database H2 Debian Rust-h2 Hyper H2 +14 more

Timeline

PublishedApr 11

Latest updateApr 14

Description

An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages17 packages

▶NVDhyper/h20.2.4

▶NVDhyper/hyper0.13.7

▶crates.ioh2database/h20.0.0-0 — 0.3.17+1

▶debiandebian/rust-h2< rust-h2 0.3.13-2 (bookworm)

▶msrcmsrc/azure_linux_3.0_arm

🔴Vulnerability Details

OSV

Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)↗2023-04-14

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OSV

h2 vulnerable to denial of service↗2023-04-11

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OSV

CVE-2023-26964: An issue was discovered in hyper v0↗2023-04-11

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GHSA

h2 vulnerable to denial of service↗2023-04-11

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📋Vendor Advisories

Microsoft

An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result the memory and CPU usage are high which can lead to a Den↗2023-04-11

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Debian

CVE-2023-26964: rust-h2 - An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when t...↗2023

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