USN-2907-1 (UBUNTU-CVE-2015-7550)

Vulnerability from osv_ubuntu – Published: 2016-02-22 19:44 – Updated: 2026-04-22 07:36 – Source website
VLAI
Summary
linux vulnerabilities
Details

halfdog discovered that OverlayFS, when mounting on top of a FUSE mount, incorrectly propagated file attributes, including setuid. A local unprivileged attacker could use this to gain privileges. (CVE-2016-1576)

halfdog discovered that OverlayFS in the Linux kernel incorrectly propagated security sensitive extended attributes, such as POSIX ACLs. A local unprivileged attacker could use this to gain privileges. (CVE-2016-1575)

It was discovered that the Linux kernel keyring subsystem contained a race between read and revoke operations. A local attacker could use this to cause a denial of service (system crash). (CVE-2015-7550)

郭永刚 discovered that the Linux kernel networking implementation did not validate protocol identifiers for certain protocol families, A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges. (CVE-2015-8543)

Dmitry Vyukov discovered that the pptp implementation in the Linux kernel did not verify an address length when setting up a socket. A local attacker could use this to craft an application that exposed sensitive information from kernel memory. (CVE-2015-8569)

David Miller discovered that the Bluetooth implementation in the Linux kernel did not properly validate the socket address length for Synchronous Connection-Oriented (SCO) sockets. A local attacker could use this to expose sensitive information. (CVE-2015-8575)

It was discovered that the Linux kernel's Filesystem in Userspace (FUSE) implementation did not handle initial zero length segments properly. A local attacker could use this to cause a denial of service (unkillable task). (CVE-2015-8785)

References
To clipboard 

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  "details": "halfdog discovered that OverlayFS, when mounting on top of a FUSE mount,\nincorrectly propagated file attributes, including setuid. A local\nunprivileged attacker could use this to gain privileges. (CVE-2016-1576)\n\nhalfdog discovered that OverlayFS in the Linux kernel incorrectly\npropagated security sensitive extended attributes, such as\nPOSIX ACLs. A local unprivileged attacker could use this to gain\nprivileges. (CVE-2016-1575)\n\nIt was discovered that the Linux kernel keyring subsystem contained a race\nbetween read and revoke operations. A local attacker could use this to\ncause a denial of service (system crash). (CVE-2015-7550)\n\n\u90ed\u6c38\u521a discovered that the Linux kernel networking implementation did\nnot validate protocol identifiers for certain protocol families, A local\nattacker could use this to cause a denial of service (system crash) or\npossibly gain administrative privileges. (CVE-2015-8543)\n\nDmitry Vyukov discovered that the pptp implementation in the Linux kernel\ndid not verify an address length when setting up a socket. A local attacker\ncould use this to craft an application that exposed sensitive information\nfrom kernel memory. (CVE-2015-8569)\n\nDavid Miller discovered that the Bluetooth implementation in the Linux\nkernel did not properly validate the socket address length for Synchronous\nConnection-Oriented (SCO) sockets. A local attacker could use this to\nexpose sensitive information. (CVE-2015-8575)\n\nIt was discovered that the Linux kernel\u0027s Filesystem in Userspace (FUSE)\nimplementation did not handle initial zero length segments properly. A\nlocal attacker could use this to cause a denial of service (unkillable\ntask). (CVE-2015-8785)\n",
  "id": "USN-2907-1",
  "modified": "2026-04-22T07:36:33Z",
  "published": "2016-02-22T19:44:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2907-1"
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      "url": "https://ubuntu.com/security/CVE-2015-7550"
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    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-8785"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-1575"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-1576"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2015-7550",
    "UBUNTU-CVE-2015-8543",
    "UBUNTU-CVE-2015-8569",
    "UBUNTU-CVE-2015-8575",
    "UBUNTU-CVE-2015-8785",
    "UBUNTU-CVE-2016-1575",
    "UBUNTU-CVE-2016-1576"
  ]
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.