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CVE-2026-46385iskorotkov/avro: CPU Exhaustion in Avro Decoder

iskorotkov avro; Red Hat Cryostat 4 on RHEL 9; Red Hat Multicluster Global Hub 1.4.5; Red Hat Multicluster Global Hub 1.6.5 Yayım: (5 ay önce)

Açıklama

iskorotkov/avro is a fast Go Avro codec. Prior to 2.33.0, the Avro array and map decoders looped over an attacker-controlled block-count value without checking the underlying reader's error state inside the loop body. Reader.ReadBlockHeader returns the count as a Go int, which is 64-bit on amd64 / arm64 targets — so a producer can declare a block of up to math.MaxInt64 (~9.2 × 10¹⁸) elements followed by EOF (or any truncated payload), and the decoder will attempt that many no-op iterations before propagating the error. The realistic ceiling is "indefinite until the worker is killed externally" — a single hostile payload pins a CPU core until the process is OOM-killed, deadline-cancelled, or terminated. Remote, unauthenticated denial-of-service. This vulnerability is fixed in 2.33.0.

Zayıflık türü (CWE): CWE-400CWE-835

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
acm 2.11 —
acm 2.13 —
acm 2.16 —
acm 2.17 —
cryostat 4 —
iskorotkov avro < 2.33.0
multicluster globalhub 1.4 —
multicluster globalhub 1.5 —
multicluster globalhub 1.6 —
multicluster globalhub 1.7 —
Red Hat Cryostat 4 on RHEL 9 all versions
Red Hat Multicluster Global Hub 1.4.5 all versions
Red Hat Multicluster Global Hub 1.6.5 all versions
Red Hat Multicluster Global Hub 1.7.0 all versions
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11 all versions
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.13 all versions
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.16 all versions
Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.17 all versions
Red Hat Red Hat Enterprise Linux 10 —
Red Hat Red Hat Enterprise Linux 8 —
Red Hat Red Hat Enterprise Linux 9 —
Red Hat Red Hat Hardened Images all versions
Red Hat Red Hat multicluster global hub 1.5.3 all versions

Kaynaklar ve yamalar

Aynı üründe son açıklar — Red Hat Enterprise Linux

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