CVE-2026-12969: falha de média gravidade em Red Hat Enterprise Linux 10
Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation
Publicada em · Atualizada em
13Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 5.3epss 0.4%
probabilidade de exploração
0.4%top 68% das CVEs
exploração observada
nãonenhuma fonte reporta
An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Produtos afetados
Red Hat · Red Hat Enterprise Linux 10Red Hat · Red Hat Enterprise Linux 6Red Hat · Red Hat Enterprise Linux 7Red Hat · Red Hat Enterprise Linux 8Red Hat · Red Hat Enterprise Linux 9Red Hat · Red Hat OpenShift Container Platform 4CVEs relacionadas — Red Hat Enterprise Linux 10
No mesmo produto, das mais perigosas para as menos.
CVE-2023-4911HIGHGlibc: buffer overflow in ld.so leading to privilege escalationEPSS 63.8%KEVCVE-2024-6387HIGHOpenssh: regresshion - race condition in ssh allows rce/dosEPSS 99.5%CVE-2023-46847HIGHSquid: denial of service in http digest authenticationEPSS 88.4%CVE-2024-3094CRITICALXz: malicious code in distributed sourceEPSS 86.0%CVE-2024-12084CRITICALRsync: heap buffer overflow in rsync due to improper checksum length handlingEPSS 72.1%CVE-2023-1183MEDIUMArbitrary file writeEPSS 64.6%