crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
51Vexday Risk Score
Priorize a correção. Ela está sob exploração confirmada pelo CISA.
ssvc Actcvss 7.8epss 0.8%
da publicação à arma
Publicada no NVD13 de out.
CISA KEV+340d
probabilidade de exploração
0.8%top 46% das CVEs
exploração observada
simCISA + VulnCheck
O que os fabricantes declaram (VEX)
Declarações oficiais dos fabricantes em formato CSAF/VEX: se o produto deles está afetado, já corrigido ou descartado — e por quê. É afirmação do fabricante, não juízo do Vexday.
Red Hatdocumento VEX ↗
Afetado
5 produtos (261 componentes)
Red Hat Enterprise Linux 9 · Red Hat Enterprise Linux 10 · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 7 · Red Hat Enterprise Linux for NVIDIA 26
workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Não afetado
1 produto (14 componentes) — porque o código vulnerável não está presente no produto
Red Hat Enterprise Linux 6
Ação exigida pela CISAprazo federal: 2026-09-21
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
In the Linux kernel, the following vulnerability has been resolved:
crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
Issuing two writes to the same af_alg socket is bogus as the
data will be interleaved in an unpredictable fashion. Furthermore,
concurrent writes may create inconsistencies in the internal
socket state.
Disallow this by adding a new ctx->write field that indiciates
exclusive ownership for writing.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Linux · LinuxReferências
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://git.kernel.org/stable/c/0f28c4adbc4a97437874c9b669fd7958a8c6d6cehttps://git.kernel.org/stable/c/1b34cbbf4f011a121ef7b2d7d6e6920a036d5285https://git.kernel.org/stable/c/1f323a48e9b5ebfe6dc7d130fdf5c3c0e92a07c8https://git.kernel.org/stable/c/45bcf60fe49b37daab1acee57b27211ad1574042https://git.kernel.org/stable/c/7c4491b5644e3a3708f3dbd7591be0a570135b84https://git.kernel.org/stable/c/9aee87da5572b3a14075f501752e209801160d3dhttps://git.kernel.org/stable/c/e4c1ec11132ec466f7362a95f36a506ce4dc08c9https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-39964