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6.5Orta

CVE-2026-91920Undertow: undertow: chunkreader message length permits chunk-size overflow

Red Hat Red Hat build of Apache Camel for Spring Boot 4; Red Hat Red Hat Enterprise Linux 8; Red Hat Red Hat Enterprise Linux 9; Red Hat Red Hat Fuse 7 Yayım: (11 gün önce)

Açıklama

A flaw was found in the ChunkReader component of the Undertow web server, which is used to handle chunked transfer encoding in HTTP requests. The issue occurs because a security check for the chunk size is performed before the value is shifted, allowing a specifically crafted 15-digit chunk size to bypass the limit and overflow into internal state flags. This can cause the server to terminate a request body prematurely and interpret the remaining data as a separate, smuggled request.

Zayıflık türü (CWE): CWE-444

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

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
Red Hat Red Hat build of Apache Camel for Spring Boot 4 all versions
Red Hat Red Hat Enterprise Linux 8 —
Red Hat Red Hat Enterprise Linux 9 —
Red Hat Red Hat Fuse 7 —
Red Hat Red Hat JBoss Enterprise Application Platform 7 all versions
Red Hat Red Hat JBoss Enterprise Application Platform 8 all versions
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack —
Red Hat Red Hat Single Sign-On 7 all versions

Kaynaklar ve yamalar

Aynı üründe son açıklar — Red Hat Enterprise Linux

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A flaw was found in libstdc++. When a byte-by-byte write operation fails during file stream processing, the library may still append data into the internal memory buffer. An attacker capable of inducing repeated write failures in an affected service can trigg…

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A flaw was found in GStreamer's MXF demuxer. When an application processes a crafted MXF file, an off-by-one bounds check can allow a one-byte write past the logical end of a temporal offset array. This may corrupt memory and cause the application to crash. T…

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A flaw was found in GStreamer's gst-plugins-bad MPEG Program Stream demuxer and resindvd DVD-playback plugin. The PES header parsers do not adequately check remaining data before reading timestamps and optional header fields. Opening a specially crafted MPEG …

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A flaw was found in GStreamer's gst-plugins-base RTCP SDES packet parser. A remote sender able to reach an active media session can supply a malformed SDES entry whose declared length exceeds the received packet. Missing bounds validation can cause the receiv…