usn-3169-2
Vulnerability from osv_ubuntu
Published
2017-01-11 08:07
Modified
2026-02-10 04:41
Summary
linux-lts-xenial vulnerabilities
Details

USN-3169-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS.

Dmitry Vyukov discovered that the KVM implementation in the Linux kernel did not properly initialize the Code Segment (CS) in certain error cases. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2016-9756)

Andrey Konovalov discovered that signed integer overflows existed in the setsockopt() system call when handling the SO_SNDBUFFORCE and SO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service (system crash or memory corruption). (CVE-2016-9793)

Baozeng Ding discovered a race condition that could lead to a use-after- free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-9794)

References
To clipboard 

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              "severity": [
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                  "type": "CVSS_V3"
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                },
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        "name": "linux-lts-xenial",
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  "aliases": [],
  "details": "USN-3169-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04\nLTS. This update provides the corresponding updates for the Linux\nHardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu\n14.04 LTS.\n\nDmitry Vyukov discovered that the KVM implementation in the Linux kernel\ndid not properly initialize the Code Segment (CS) in certain error cases. A\nlocal attacker could use this to expose sensitive information (kernel\nmemory). (CVE-2016-9756)\n\nAndrey Konovalov discovered that signed integer overflows existed in the\nsetsockopt() system call when handling the SO_SNDBUFFORCE and\nSO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capability\ncould use this to cause a denial of service (system crash or memory\ncorruption). (CVE-2016-9793)\n\nBaozeng Ding discovered a race condition that could lead to a use-after-\nfree in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linux\nkernel. A local attacker could use this to cause a denial of service\n(system crash). (CVE-2016-9794)\n",
  "id": "USN-3169-2",
  "modified": "2026-02-10T04:41:04Z",
  "published": "2017-01-11T08:07:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3169-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-9756"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-9793"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-9794"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-lts-xenial vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2016-9756",
    "UBUNTU-CVE-2016-9793",
    "UBUNTU-CVE-2016-9794"
  ]
}



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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.