CVE-2018-19854

 

Published at: - 04-12-2018 05:29

Last modified: - 26-10-2022 01:44

Total changes: - 3

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).

Common Vulnerability Scoring System (CVSS)

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

 

Verification logic

 

Reference

• https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.3
• https://github.com/torvalds/linux/commit/f43f39958beb206b53292801e216d9b8a660f087
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43f39958beb206b53292801e216d9b8a660f087
• USN-3872-1-Third Party Advisory
• USN-3878-1-Third Party Advisory
• USN-3878-2-Third Party Advisory
• USN-3901-2-Third Party Advisory
• USN-3901-1-Third Party Advisory
• RHSA-2019:3517-
• RHSA-2019:3309-

 

Keywords

NVD

 

CVE-2018-19854

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures