Upstream information

CVE-2019-11191 at MITRE

Description

** DISPUTED ** The Linux kernel through 5.0.7, when CONFIG_IA32_AOUT is enabled and ia32_aout is loaded, allows local users to bypass ASLR on setuid a.out programs (if any exist) because install_exec_creds() is called too late in load_aout_binary() in fs/binfmt_aout.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having low severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 1.9
Vector AV:L/AC:M/Au:N/C:P/I:N/A:N
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 2.5 3.3
Vector CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Access Vector Local Local
Access Complexity High Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact Low Low
Integrity Impact None None
Availability Impact None None
CVSSv3 Version 3 3
SUSE Bugzilla entries: 1131543 [RESOLVED / WORKSFORME], 1132374 [RESOLVED / WONTFIX], 1132472 [RESOLVED / FIXED]

SUSE Security Advisories:


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SLES for SAP Applications kernel-source Ignore
SUSE Linux Enterprise 15 Module for Basesystem kernel-source Ignore
SUSE Linux Enterprise 15 Module for Development Tools kernel-source Ignore
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Ignore
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Ignore
SUSE Linux Enterprise High Performance Computing 12 SP4 kernel-source Ignore
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-source Ignore
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 SP1 LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 SP2 LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 SP3 kernel-source Ignore
SUSE Linux Enterprise Server 12 SP4 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Ignore