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CVE-2021-35039

Published: Jul 7, 2021

Modified: Aug 4, 2024

PUBLISHED

Description

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://www.openwall.com/lists/oss-security/2021/07/06/3

x_refsource_MISC

https://github.com/torvalds/linux/commit/0c18f29aae7ce3dadd26d8ee3505d07cc982df75

x_refsource_CONFIRM

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.14

x_refsource_CONFIRM

[oss-security] 20210706 CVE-2021-35039: Linux kernel loading unsigned kernel modules via init_module syscall

mailing-list

x_refsource_MLIST

https://security.netapp.com/advisory/ntap-20210813-0004/

x_refsource_CONFIRM

[debian-lts-announce] 20211015 [SECURITY] [DLA 2785-1] linux-4.19 security update

mailing-list

x_refsource_MLIST

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c18f29aae7ce3dadd26d8ee3505d07cc982df75

x_refsource_MISC

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