CVEvulnerability
CVE-2021-35039
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-07-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-347
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.
Affected configurations
• linux linux kernel (>= 4.15 < 4.19.196)
• linux linux kernel (>= 4.20 < 5.4.129)
• linux linux kernel (>= 5.5 < 5.10.47)
• linux linux kernel (>= 5.11 < 5.12.14)
• debian debian linux 9.0
Related
Weakness · CWE (1)
- CWE-347 Improper Verification of Cryptographic Signature weakness
References
- http://www.openwall.com/lists/oss-security/2021/07/06/3 Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.14 Mailing List, Patch, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c18f29aae7ce3dadd26d8ee3505d07cc982df75 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/0c18f29aae7ce3dadd26d8ee3505d07cc982df75 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210813-0004/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/07/06/3 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/07/06/3 Mailing List, Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.14 Mailing List, Patch, Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0c18f29aae7ce3dadd26d8ee3505d07cc982df75 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/0c18f29aae7ce3dadd26d8ee3505d07cc982df75 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html Mailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210813-0004/ Third Party Advisory
- https://www.openwall.com/lists/oss-security/2021/07/06/3 Mailing List, Third Party Advisory