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CVE-2016-7907 (GCVE-0-2016-7907)

Vulnerability from cvelistv5 – Published: 2016-10-05 16:00 – Updated: 2024-08-06 02:13
VLAI
Summary
The imx_fec_do_tx function in hw/net/imx_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
Severity
4.4 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE
  • n/a
Assigner
References
URL Tags
http://www.openwall.com/lists/oss-security/2016/10/03/1 mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/201611-11 vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-updates/2016-1… vendor-advisoryx_refsource_SUSE
https://lists.gnu.org/archive/html/qemu-devel/201… mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/93274 vdb-entryx_refsource_BID
http://www.openwall.com/lists/oss-security/2016/10/03/4 mailing-listx_refsource_MLIST
Date Public
2016-09-22 00:00
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T11:58:46+00:00",
      "cve": "CVE-2016-7907",
      "id": "CVE-2016-7907",
      "initial_release_date": "2016-09-21T00:00:00+00:00",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "34",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Qemu: net: inifinte loop in imx_fec_do_tx() function",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-7907.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T02:11:30Z",
      "cve": "CVE-2016-7907",
      "id": "CVE-2016-7907",
      "initial_release_date": "2023-02-15T04:57:37Z",
      "product_status:known_affected": "420",
      "product_status:known_not_affected": "140",
      "product_status:recommended": "1745",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-7907",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-7907.json",
      "version": "36"
    }
  }
}



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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

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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.


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