CVEvulnerability

CVE-2016-9604

4.4 MEDIUM Published 2018-07-11 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2018-07-11
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
4.4 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS 3.0 ([email protected])
4.4 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-347, CWE-732

Description

It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.

Affected configurations

• linux linux kernel (<= 4.11) • linux linux kernel 4.11

Related

Weakness · CWE (2)

  • CWE-347 Improper Verification of Cryptographic Signature weakness
  • CWE-732 Incorrect Permission Assignment for Critical Resource weakness

References