Vulnérabilités / CVE-2026-5503

critique

CVE-2026-5503

In TLSX_EchChangeSNI, the ctx->extensions branch set extensions uncond ...

Publiée Modifiée CWE 787
Dans la Trivy database depuis au moins le 24 oct. 2026, 07:11 UTCLa date d'entrée avant ce build n'est pas enregistrée.

Sévérité par source

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Julia6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Le label propre à Trivy est CRITICAL. Critique selon NVD. Plus basse selon Julia (moyenne).

Description

In TLSX_EchChangeSNI, the ctx->extensions branch set extensions unconditionally even when TLSX_Find returned NULL. This caused TLSX_UseSNI to attach the attacker-controlled publicName to the shared WOLFSSL_CTX when no inner SNI was configured. TLSX_EchRestoreSNI then failed to clean it up because its removal was gated on serverNameX != NULL. The inner ClientHello was sized before the pollution but written after it, causing TLSX_SNI_Write to memcpy 255 bytes past the allocation boundary.

Paquets affectés et versions corrigées

SourcePaquetCorrigé en
alpine 3.23wolfssl5.9.1-r0
alpine 3.24wolfssl5.9.1-r0
alpine edgewolfssl5.9.1-r0
debian 11wolfsslpas de correctif indiqué
debian 12wolfsslpas de correctif indiqué
debian 13wolfsslpas de correctif indiqué
echowolfsslpas de correctif indiqué
julia::Julia Ecosystem Security AdvisorieswolfSSL_jll5.9.2+0
rapidfort alpine 3.20wolfssl5.9.1-r0
rapidfort alpine 3.21wolfssl5.9.1-r0
rapidfort alpine 3.22wolfssl5.9.1-r0
rapidfort debian 12wolfssl0:5.9.1-0.1
Afficher les 13 entrées de 13 sources
SourcePaquetCorrigé en
alpine 3.23wolfssl5.9.1-r0
alpine 3.24wolfssl5.9.1-r0
alpine edgewolfssl5.9.1-r0
debian 11wolfsslpas de correctif indiqué
debian 12wolfsslpas de correctif indiqué
debian 13wolfsslpas de correctif indiqué
echowolfsslpas de correctif indiqué
julia::Julia Ecosystem Security AdvisorieswolfSSL_jll5.9.2+0
rapidfort alpine 3.20wolfssl5.9.1-r0
rapidfort alpine 3.21wolfssl5.9.1-r0
rapidfort alpine 3.22wolfssl5.9.1-r0
rapidfort debian 12wolfssl0:5.9.1-0.1
rapidfort debian 13wolfssl0:5.9.1-0.1

Références

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.