CVE-2019-11191 Detail
Current 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
Description Last Modified:
04/11/2019
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
Description Last Modified:
04/11/2019
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
4.7 MEDIUM
Vector:
AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
(V3 legend)
Impact Score:
3.6
Exploitability Score:
1.0
Attack Vector (AV):
Local
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
CVSS v2.0 Severity and Metrics:
Base Score:
4.7 MEDIUM
Vector:
(AV:L/AC:M/Au:N/C:C/I:N/A:N)
(V2 legend)
Impact Subscore:
6.9
Exploitability Subscore:
3.4
Access Vector (AV):
Local
Access Complexity (AC):
Medium
Authentication (AU):
None
Confidentiality (C):
Complete
Integrity (I):
None
Availability (A):
None
Additional Information:
Allows unauthorized disclosure of information
References to Advisories, Solutions, and Tools
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Change History
2 change records found
- show changes
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:
04/12/2019
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