vulnwire
4.4med

CVE-2016-7907

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 transm…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
4.4
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
0.4%
percentile 35%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

0.41% probability of exploitation in the next 30 days, higher than 35% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.14.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD2.02.1AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-399 Resource Management Errors

References

  • openwall.com /lists/oss-security/2016/10/03/1 · mailing-list, x_refsource_MLIST, x_transferred
  • security.gentoo.org /glsa/201611-11 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • lists.opensuse.org /opensuse-updates/2016-12/msg00140.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • lists.gnu.org /archive/html/qemu-devel/2016-09/msg05556.html · mailing-list, x_refsource_MLIST, x_transferred
  • securityfocus.com /bid/93274 · vdb-entry, x_refsource_BID, x_transferred
  • openwall.com /lists/oss-security/2016/10/03/4 · mailing-list, x_refsource_MLIST, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.