PT-2023-9439 · Linux+1 · Linux Kernel+1

Michael Walle · Publicado 2023-01-13 · Atualizado 2024-09-24 · CVE-2022-48895

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Média

Vetor base

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.0-rc5-00088-gf3600ff8e322 #1930

Description The vulnerability is related to the iommu/arm-smmu component in the Linux kernel. It occurs when the system is shut down with the "reboot -f" command while a packet transmission is in flight, causing a kernel NULL pointer dereference. This can lead to a kernel panic and a fatal exception in interrupt. The issue is reproducible when the board has a fixed IP address and is ping flooded from another host.

Recommendations To resolve the issue, update the Linux kernel to a version that includes the fix for the iommu/arm-smmu vulnerability. Alternatively, boot with the "arm-smmu.disable bypass=0" option to allow unknown Stream IDs, but this may have security implications.

Exploit

Correção

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

BDU:2024-07590

CVE-2022-48895

Produtos afetados

Linux Kernel

Red Os

Referências · 19

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48895.json · Exploit
• https://redos.red-soft.ru/support/secure · Nota
• https://git.kernel.org/stable/c/ce31e6ca68bd7639bd3e5ef97be215031842bbab · Correção
• https://cve.org/CVERecord?id=CVE-2022-48895 · Nota de Segurança
• https://lore.kernel.org/linux-cve-announce/2024082110-CVE-2022-48895-1370@gregkh · Nota
• https://twitter.com/CVEnew/status/1826142269432270848 · Publicação no Twitter
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-48895 · Aviso do Fabricante
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-48895 · Aviso do Fabricante
• https://security-tracker.debian.org/tracker/CVE-2022-48895 · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2022-48895 · Nota de Segurança
• https://ubuntu.com/security/CVE-2022-48895 · Aviso do Fabricante
• https://redos.red-soft.ru/support/secure/uyazvimosti/support/secure/uyazvimosti/mnozhestvennye-uyazvimosti-kernel-lt-24-09-24-1 · Nota
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.7 · Nota
• https://git.kernel.org/stable/c/a1b9c7b1978aacf4b2f33e34bde1e2bb80b8497a · Correção
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Nota