vulnerability

Ubuntu: (Multiple Advisories) (CVE-2018-19854): Linux kernel (HWE) vulnerabilities

Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
Dec 4, 2018
Added
Feb 5, 2019
Modified
Aug 18, 2025

Description

An issue was discovered in the Linux kernel before 4.19.3. crypto_report_one() and related functions in crypto/crypto_user.c (the crypto user configuration API) do not fully initialize structures that are copied to userspace, potentially leaking sensitive memory to user programs. NOTE: this is a CVE-2013-2547 regression but with easier exploitability because the attacker does not need a capability (however, the system must have the CONFIG_CRYPTO_USER kconfig option).

Solutions

ubuntu-upgrade-linux-image-4-15-0-1009-oracleubuntu-upgrade-linux-image-4-15-0-1028-gcpubuntu-upgrade-linux-image-4-15-0-1030-kvmubuntu-upgrade-linux-image-4-15-0-1032-raspi2ubuntu-upgrade-linux-image-4-15-0-1033-awsubuntu-upgrade-linux-image-4-15-0-1034-oemubuntu-upgrade-linux-image-4-15-0-1040-azureubuntu-upgrade-linux-image-4-15-0-46-genericubuntu-upgrade-linux-image-4-15-0-46-generic-lpaeubuntu-upgrade-linux-image-4-15-0-46-lowlatencyubuntu-upgrade-linux-image-4-15-0-46-snapdragonubuntu-upgrade-linux-image-4-18-0-1006-gcpubuntu-upgrade-linux-image-4-18-0-1007-kvmubuntu-upgrade-linux-image-4-18-0-1008-awsubuntu-upgrade-linux-image-4-18-0-1008-azureubuntu-upgrade-linux-image-4-18-0-1009-raspi2ubuntu-upgrade-linux-image-4-18-0-14-genericubuntu-upgrade-linux-image-4-18-0-14-generic-lpaeubuntu-upgrade-linux-image-4-18-0-14-lowlatencyubuntu-upgrade-linux-image-4-18-0-14-snapdragonubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-16-04ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragonubuntu-upgrade-linux-image-snapdragon-hwe-18-04

References

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