CVE-2011-1020
Summary
| CVE | CVE-2011-1020 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2011-02-28 16:00:01 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| 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. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
LowAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:L/AC:L/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| oss-security - Re: CVE request: kernel: /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | openwall.com | Mailing List, Third Party Advisory |
| LKML: Kees Cook: Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Mailing List, Third Party Advisory |
| Interact with SUID binaries using /proc interface | af854a3a-2127-422b-91ae-364da2661108 | www.halfdog.net | Exploit, Third Party Advisory |
| oss-security - CVE request: kernel: /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | openwall.com | Mailing List, Third Party Advisory |
| LKML: James Morris: Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Mailing List, Third Party Advisory |
| Linux Kernel "/proc/<pid>/" Permissions Handling Weakness - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Third Party Advisory |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | Third Party Advisory, VDB Entry |
| Linux Kernel "/proc/<pid>/" Permissions Handling Weakness - SecurityReason.com | af854a3a-2127-422b-91ae-364da2661108 | securityreason.com | Third Party Advisory |
| LKML: Kees Cook: Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Mailing List, Third Party Advisory |
| LKML: James Morris: Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Mailing List, Third Party Advisory |
| LKML: Kees Cook: Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Mailing List, Third Party Advisory |
| LKML: Kees Cook: [SECURITY] /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Exploit, Mailing List, Third Party Advisory |
| LKML: (Eric W. Biederman): Re: [SECURITY] /proc/$pid/ leaks contents across setuid exec | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Mailing List, Third Party Advisory |
| Full Disclosure: Proc filesystem and SUID-Binaries | af854a3a-2127-422b-91ae-364da2661108 | seclists.org | Exploit, Mailing List, Third Party Advisory |
| Linux Kernel '/proc//' Permissions Handling Local Security Bypass Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Third Party Advisory, VDB Entry |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.