ghsa-rgcw-fh34-72mm
Vulnerability from github
Published
2022-05-02 03:29
Modified
2025-04-09 04:12
Details

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).

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{
  "affected": [],
  "aliases": [
    "CVE-2009-1895"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2009-07-16T15:30:00Z",
    "severity": "HIGH"
  },
  "details": "The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).",
  "id": "GHSA-rgcw-fh34-72mm",
  "modified": "2025-04-09T04:12:01Z",
  "published": "2022-05-02T03:29:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2009-1895"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/bugs/cve/2009-1895"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11768"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7826"
    },
    {
      "type": "WEB",
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9453"
    },
    {
      "type": "WEB",
      "url": "https://rhn.redhat.com/errata/RHSA-2009-1540.html"
    },
    {
      "type": "WEB",
      "url": "https://rhn.redhat.com/errata/RHSA-2009-1550.html"
    },
    {
      "type": "WEB",
      "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00166.html"
    },
    {
      "type": "WEB",
      "url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00223.html"
    },
    {
      "type": "WEB",
      "url": "http://blog.cr0.org/2009/06/bypassing-linux-null-pointer.html"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f9fabcb58a6d26d6efde842d1703ac7cfa9427b6"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f9fabcb58a6d26d6efde842d1703ac7cfa9427b6"
    },
    {
      "type": "WEB",
      "url": "http://patchwork.kernel.org/patch/32598"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/35801"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/36045"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/36051"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/36054"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/36116"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/36131"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/36759"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/37471"
    },
    {
      "type": "WEB",
      "url": "http://wiki.rpath.com/Advisories:rPSA-2009-0111"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2009/dsa-1844"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2009/dsa-1845"
    },
    {
      "type": "WEB",
      "url": "http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc3"
    },
    {
      "type": "WEB",
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:051"
    },
    {
      "type": "WEB",
      "url": "http://www.osvdb.org/55807"
    },
    {
      "type": "WEB",
      "url": "http://www.redhat.com/support/errata/RHSA-2009-1193.html"
    },
    {
      "type": "WEB",
      "url": "http://www.redhat.com/support/errata/RHSA-2009-1438.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/505254/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/507985/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/512019/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/35647"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/usn-807-1"
    },
    {
      "type": "WEB",
      "url": "http://www.vmware.com/security/advisories/VMSA-2009-0016.html"
    },
    {
      "type": "WEB",
      "url": "http://www.vupen.com/english/advisories/2009/1866"
    },
    {
      "type": "WEB",
      "url": "http://www.vupen.com/english/advisories/2009/3316"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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