Improper input validation in Qemu
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 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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.004 (33.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Qemu — versions 2.9.0
- N/a — versions n/a
Weakness classification (CWE)
References
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (Vendor Advisory, mailing-list, x_refsource_MLIST, Patch, Mailing List)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-7907?
- CVE-2016-7907 is a medium-severity vulnerability in Qemu, classified under Improper Input Validation. CVSS score: 4.4/10. Published 2016-10-05.
- How severe is CVE-2016-7907?
- Medium severity. CVSS v3 base score is 4.4 out of 10.