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CVE-2023-6546Kernel: gsm multiplexing race condition leads to privilege escalation

Red Hat Red Hat Enterprise Linux 8; Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critica… Veröffentlicht: (vor 2 Jahren)

Beschreibung

A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.

Schwachstellentyp (CWE): CWE-366CWE-362

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

HerstellerProduktVersionen
enterprise linux 8 —
enterprise linux 9 —
fedoraproject fedora 39
linux linux kernel < 6.5
logging 5.7 —
redhat enterprise linux 8.0
Red Hat Red Hat Enterprise Linux 6 —
Red Hat Red Hat Enterprise Linux 7 —
Red Hat Red Hat Enterprise Linux 8 all versions
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support all versions
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support all versions
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service all versions
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions all versions
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support all versions
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support all versions
Red Hat Red Hat Enterprise Linux 9 all versions
Red Hat Red Hat Enterprise Linux 9.0 Extended Update Support all versions
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support all versions
Red Hat Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 all versions
Red Hat RHOL-5.7-RHEL-8 all versions
rhel aus 8.2 —
rhel aus 8.4 —
rhel e4s 8.4 —
rhel eus 8.6 —
rhel eus 8.8 —
rhel eus 9.0 —
rhel eus 9.2 —
rhel tus 8.4 —
rhev hypervisor 4.4 —

Referenzen und Patches

CPE-Treffer (NVD) (10)
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* < 6.5
  • cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.5:rc6:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

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