CVE-2019-11191
Linux Kernel IA32 AOUT ASLR Bypass
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. NOTE: the software maintainer disputes that this is a vulnerability because ASLR for a.out format executables has never been supported
INFO
Published Date :
April 12, 2019, 12:29 a.m.
Last Modified :
Aug. 4, 2024, 11:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
1.0
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-11191.
| URL | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html | |
| http://www.openwall.com/lists/oss-security/2019/04/18/5 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2019/05/22/7 | |
| http://www.securityfocus.com/bid/107887 | Third Party Advisory VDB Entry |
| https://usn.ubuntu.com/4006-1/ | |
| https://usn.ubuntu.com/4006-2/ | |
| https://usn.ubuntu.com/4007-1/ | |
| https://usn.ubuntu.com/4007-2/ | |
| https://usn.ubuntu.com/4008-1/ | |
| https://usn.ubuntu.com/4008-3/ | |
| https://www.openwall.com/lists/oss-security/2019/04/03/4 | Mailing List Exploit Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2019/04/03/4/1 | Mailing List Exploit Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-11191 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-11191 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Aug. 04, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 17, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 11, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 21, 2024
Action Type Old Value New Value Added Tag MITRE disputed -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Changed 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. 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 [email protected]
Jun. 18, 2019
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 [email protected]
Jun. 17, 2019
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 [email protected]
Jun. 07, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4008-3/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 05, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4008-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/4007-2/ [No Types Assigned] Added Reference https://usn.ubuntu.com/4007-1/ [No Types Assigned] Added Reference https://usn.ubuntu.com/4006-2/ [No Types Assigned] Added Reference https://usn.ubuntu.com/4006-1/ [No Types Assigned] -
CVE Modified by [email protected]
May. 23, 2019
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2019/05/22/7 [No Types Assigned] -
Modified Analysis by [email protected]
Apr. 24, 2019
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 [email protected]
Apr. 18, 2019
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2019/04/18/5 [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 12, 2019
Action Type Old Value New Value 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 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 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 Added CWE CWE-362 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.0.7 -
CVE Modified by [email protected]
Apr. 12, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/107887 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-11191 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-11191
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile