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CVE-2011-1020 (GCVE-0-2011-1020)

Vulnerability from cvelistv5 – Published: 2011-02-28 15:00 – Updated: 2024-08-06 22:14
VLAI
Summary
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.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://securityreason.com/securityalert/8107 third-party-advisoryx_refsource_SREASON
http://secunia.com/advisories/43496 third-party-advisoryx_refsource_SECUNIA
http://openwall.com/lists/oss-security/2011/02/24/18 mailing-listx_refsource_MLIST
https://lkml.org/lkml/2011/2/7/466 mailing-listx_refsource_MLIST
http://openwall.com/lists/oss-security/2011/02/25/2 mailing-listx_refsource_MLIST
https://lkml.org/lkml/2011/2/7/414 mailing-listx_refsource_MLIST
https://lkml.org/lkml/2011/2/10/21 mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/46567 vdb-entryx_refsource_BID
https://lkml.org/lkml/2011/2/7/368 mailing-listx_refsource_MLIST
https://lkml.org/lkml/2011/2/9/417 mailing-listx_refsource_MLIST
https://lkml.org/lkml/2011/2/7/474 mailing-listx_refsource_MLIST
https://lkml.org/lkml/2011/2/7/404 mailing-listx_refsource_MLIST
http://seclists.org/fulldisclosure/2011/Jan/421 mailing-listx_refsource_FULLDISC
http://www.halfdog.net/Security/2011/SuidBinaries… x_refsource_MISC
Date Public
2011-01-22 00:00
Show details on NVD website
To clipboard 

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Advisory\"]},{\"url\":\"https://lkml.org/lkml/2011/2/7/414\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lkml.org/lkml/2011/2/7/466\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lkml.org/lkml/2011/2/7/474\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lkml.org/lkml/2011/2/9/417\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:59:01+00:00",
      "cve": "CVE-2011-1020",
      "id": "CVE-2011-1020",
      "initial_release_date": "2011-02-07T00:00:00+00:00",
      "product_status:fixed": "593",
      "product_status:known_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: no access restrictions of /proc/pid/* after setuid program exec",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-1020.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-29T00:15:02Z",
      "cve": "CVE-2011-1020",
      "id": "CVE-2011-1020",
      "initial_release_date": "2023-02-15T05:54:09Z",
      "product_status:known_not_affected": "495",
      "product_status:recommended": "383",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2011-1020",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-1020.json",
      "version": "21"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.