vulnerability

Ubuntu: (Multiple Advisories) (CVE-2016-9604): Linux kernel vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:N)
Published
Apr 28, 2017
Added
Jun 8, 2017
Modified
Jan 23, 2025

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.

Solution(s)

ubuntu-upgrade-linux-image-3-13-0-132-genericubuntu-upgrade-linux-image-3-13-0-132-generic-lpaeubuntu-upgrade-linux-image-3-13-0-132-lowlatencyubuntu-upgrade-linux-image-3-13-0-132-powerpc-e500ubuntu-upgrade-linux-image-3-13-0-132-powerpc-e500mcubuntu-upgrade-linux-image-3-13-0-132-powerpc-smpubuntu-upgrade-linux-image-3-13-0-132-powerpc64-embubuntu-upgrade-linux-image-3-13-0-132-powerpc64-smpubuntu-upgrade-linux-image-4-10-0-1006-raspi2ubuntu-upgrade-linux-image-4-10-0-22-genericubuntu-upgrade-linux-image-4-10-0-22-generic-lpaeubuntu-upgrade-linux-image-4-10-0-22-lowlatencyubuntu-upgrade-linux-image-4-10-0-27-genericubuntu-upgrade-linux-image-4-10-0-27-generic-lpaeubuntu-upgrade-linux-image-4-10-0-27-lowlatencyubuntu-upgrade-linux-image-4-4-0-1014-gkeubuntu-upgrade-linux-image-4-4-0-1018-awsubuntu-upgrade-linux-image-4-4-0-1057-raspi2ubuntu-upgrade-linux-image-4-4-0-1059-snapdragonubuntu-upgrade-linux-image-4-4-0-79-genericubuntu-upgrade-linux-image-4-4-0-79-generic-lpaeubuntu-upgrade-linux-image-4-4-0-79-lowlatencyubuntu-upgrade-linux-image-4-4-0-79-powerpc-e500mcubuntu-upgrade-linux-image-4-4-0-79-powerpc-smpubuntu-upgrade-linux-image-4-4-0-79-powerpc64-embubuntu-upgrade-linux-image-4-4-0-79-powerpc64-smpubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-16-04ubuntu-upgrade-linux-image-generic-lpae-lts-trustyubuntu-upgrade-linux-image-generic-lpae-lts-xenialubuntu-upgrade-linux-image-generic-lts-trustyubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-powerpc-e500ubuntu-upgrade-linux-image-powerpc-e500mcubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenialubuntu-upgrade-linux-image-powerpc-smpubuntu-upgrade-linux-image-powerpc-smp-lts-xenialubuntu-upgrade-linux-image-powerpc64-embubuntu-upgrade-linux-image-powerpc64-emb-lts-xenialubuntu-upgrade-linux-image-powerpc64-smpubuntu-upgrade-linux-image-powerpc64-smp-lts-xenialubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-virtual
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