CVE-2011-1020
Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 28 Feb 2011, 15:00
Last modified:06 Aug 2024, 22:14
Vulnerability Summary
Overall Risk (default)
medium
28/100 CVSS Score
4.6 MEDIUM
v2.0 (nvd)
EPSS Score
0.24% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
4 found
Dark Web
Not detected
Timeline
28 Feb 2011, 15:00
Published
Vulnerability first disclosed
06 Aug 2024, 22:14
Last Modified
Vulnerability information updated
Description
The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the /proc directory tree of a process after this process performs an exec of a setuid program, which allows local users to obtain sensitive information or cause a denial of service via open, lseek, read, and write system calls.
CVSS Metrics
- v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P
EPSS Trends
Current EPSS score: 0.24%• Percentile: 48%
Techniques & Countermeasures
- CWE-200•Exposure of Sensitive Information to an Unauthorized Actor
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Affected Systems
- linux•linux_kernel
< 2.6.37
References (15)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65693
- http://securityreason.com/securityalert/8107
- http://secunia.com/advisories/43496
- http://openwall.com/lists/oss-security/2011/02/24/18
- https://lkml.org/lkml/2011/2/7/466
- http://openwall.com/lists/oss-security/2011/02/25/2
- https://lkml.org/lkml/2011/2/7/414
- https://lkml.org/lkml/2011/2/10/21
- http://www.securityfocus.com/bid/46567
- https://lkml.org/lkml/2011/2/7/368
- https://lkml.org/lkml/2011/2/9/417
- https://lkml.org/lkml/2011/2/7/474
- https://lkml.org/lkml/2011/2/7/404
- http://seclists.org/fulldisclosure/2011/Jan/421
- http://www.halfdog.net/Security/2011/SuidBinariesAndProcInterface/