CVE-2021-35039

October 22, 2021

kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.

Summary:

kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.

Reference Links(if available):

  • https://www.openwall.com/lists/oss-security/2021/07/06/3
  • https://github.com/torvalds/linux/commit/0c18f29aae7ce3dadd26d8ee3505d07cc982df75
  • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.14
  • http://www.openwall.com/lists/oss-security/2021/07/06/3
  • https://security.netapp.com/advisory/ntap-20210813-0004/

    • CVSS Score (if available)

    v2: / MEDIUMAV:L/AC:M/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)

  • Tags: , , , ,

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