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: Running

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 AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N 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
SUSE Bugzilla entries: 1131543 [RESOLVED / WORKSFORME], 1132374 [RESOLVED / WONTFIX], 1132472 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 42.3
  • kernel-debug >= 4.4.180-102.1
  • kernel-debug-base >= 4.4.180-102.1
  • kernel-debug-base-debuginfo >= 4.4.180-102.1
  • kernel-debug-debuginfo >= 4.4.180-102.1
  • kernel-debug-debugsource >= 4.4.180-102.1
  • kernel-debug-devel >= 4.4.180-102.1
  • kernel-debug-devel-debuginfo >= 4.4.180-102.1
  • kernel-default >= 4.4.180-102.1
  • kernel-default-base >= 4.4.180-102.1
  • kernel-default-base-debuginfo >= 4.4.180-102.1
  • kernel-default-debuginfo >= 4.4.180-102.1
  • kernel-default-debugsource >= 4.4.180-102.1
  • kernel-default-devel >= 4.4.180-102.1
  • kernel-devel >= 4.4.180-102.1
  • kernel-docs >= 4.4.180-102.1
  • kernel-docs-html >= 4.4.180-102.1
  • kernel-docs-pdf >= 4.4.180-102.1
  • kernel-macros >= 4.4.180-102.1
  • kernel-obs-build >= 4.4.180-102.1
  • kernel-obs-build-debugsource >= 4.4.180-102.1
  • kernel-obs-qa >= 4.4.180-102.1
  • kernel-source >= 4.4.180-102.1
  • kernel-source-vanilla >= 4.4.180-102.1
  • kernel-syms >= 4.4.180-102.1
  • kernel-vanilla >= 4.4.180-102.1
  • kernel-vanilla-base >= 4.4.180-102.1
  • kernel-vanilla-base-debuginfo >= 4.4.180-102.1
  • kernel-vanilla-debuginfo >= 4.4.180-102.1
  • kernel-vanilla-debugsource >= 4.4.180-102.1
  • kernel-vanilla-devel >= 4.4.180-102.1
Patchnames:
openSUSE-2019-1570


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
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Affected
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 12 kernel-source Not affected
SUSE Linux Enterprise Module for Basesystem 15 GA kernel-source Not affected
SUSE Linux Enterprise Module for Development Tools 15 GA kernel-source Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-source Affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Released
SUSE Linux Enterprise Server 12 GA LTSS kernel-source Released
SUSE Linux Enterprise Server 12 SP1 LTSS kernel-source Released
SUSE Linux Enterprise Server 12 SP2 LTSS kernel-source Released
SUSE Linux Enterprise Server 12 SP3 kernel-source Affected
SUSE Linux Enterprise Server 12 SP4 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 11 SP3 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 12 GA kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Not affected