CVE-2021-37576

September 18, 2021

arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.

Summary:

arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.

Reference Links(if available):

  • https://lore.kernel.org/linuxppc-dev/[email protected]/T/#u
  • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f62f3c20647ebd5fb6ecb8f0b477b9281c44c10a
  • http://www.openwall.com/lists/oss-security/2021/07/27/2
  • https://lists.fedoraproject.org/archives/list/[email protected]/message/Z2YZ2DNURMYYVDT2NYAFDESJC35KCUDS/
  • https://lists.fedoraproject.org/archives/list/[email protected]/message/WDFA7DSQIPM7XPNXJBXFWXHJFVUBCAG6/

    • CVSS Score (if available)

    v2: / MEDIUMAV:L/AC:L/Au:N/C:C/I:C/A:C

    v3: / HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

    Links to Exploits(if available)

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