CVE-2019-11191 Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current 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.
Source:
MITRE
View Analysis Description
Analysis Description
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.
Source:
MITRE
Severity
CVSS 3.x Severity and Metrics:
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0 Severity and Metrics:
Vector: (AV:L/AC:M/Au:N/C:P/I:N/A:N)
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID |
CWE Name |
Source |
| CWE-362 |
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') |
NIST
|
Change History
9 change records found
- show changes
CVE Modified by MITRE -
6/18/2019 11:15:11 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html [No Types Assigned] |
CVE Modified by MITRE -
6/17/2019 12:15:12 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
Description |
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. |
** 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. |
CVE Modified by MITRE -
6/7/2019 3:29:01 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://usn.ubuntu.com/4008-3/ [No Types Assigned] |
CVE Modified by MITRE -
6/4/2019 9:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
https://usn.ubuntu.com/4006-1/ [No Types Assigned] |
| Added |
Reference |
|
https://usn.ubuntu.com/4006-2/ [No Types Assigned] |
| Added |
Reference |
|
https://usn.ubuntu.com/4007-1/ [No Types Assigned] |
| Added |
Reference |
|
https://usn.ubuntu.com/4007-2/ [No Types Assigned] |
| Added |
Reference |
|
https://usn.ubuntu.com/4008-1/ [No Types Assigned] |
CVE Modified by MITRE -
5/22/2019 8:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.openwall.com/lists/oss-security/2019/05/22/7 [No Types Assigned] |
Modified Analysis -
4/24/2019 2:28:24 PM
| Action |
Type |
Old Value |
New Value |
| Changed |
CVSS V2 |
(AV:L/AC:M/Au:N/C:C/I:N/A:N) |
(AV:L/AC:M/Au:N/C:P/I:N/A:N) |
| Changed |
CVSS V3 |
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |
| Changed |
Reference Type |
http://www.openwall.com/lists/oss-security/2019/04/18/5 No Types Assigned |
http://www.openwall.com/lists/oss-security/2019/04/18/5 Mailing List, Third Party Advisory |
CVE Modified by MITRE -
4/18/2019 2:29:00 PM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.openwall.com/lists/oss-security/2019/04/18/5 [No Types Assigned] |
Initial Analysis -
4/12/2019 9:47:35 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.0.7 |
| Added |
CVSS V2 |
|
(AV:L/AC:M/Au:N/C:C/I:N/A:N) |
| Added |
CVSS V3 |
|
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Added |
CWE |
|
CWE-362 |
| Changed |
Reference Type |
http://www.securityfocus.com/bid/107887 No Types Assigned |
http://www.securityfocus.com/bid/107887 Third Party Advisory, VDB Entry |
| Changed |
Reference Type |
https://www.openwall.com/lists/oss-security/2019/04/03/4 No Types Assigned |
https://www.openwall.com/lists/oss-security/2019/04/03/4 Exploit, Mailing List, Third Party Advisory |
| Changed |
Reference Type |
https://www.openwall.com/lists/oss-security/2019/04/03/4/1 No Types Assigned |
https://www.openwall.com/lists/oss-security/2019/04/03/4/1 Exploit, Mailing List, Third Party Advisory |
CVE Modified by MITRE -
4/12/2019 9:29:02 AM
| Action |
Type |
Old Value |
New Value |
| Added |
Reference |
|
http://www.securityfocus.com/bid/107887 [No Types Assigned] |
Quick Info
CVE Dictionary Entry:
CVE-2019-11191
NVD Published Date:
04/11/2019
NVD Last Modified:
06/17/2019
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