Medium severity · published Oct 5, 2016
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…
4.4
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QE
Qemu · Qemu
through 2.8.1.1; 2.9.0; 2.9.0; 2.9.0; 2.9.0; 2.9.0; +1 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-7907
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-7907
Mailing List
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
Mailing List
http://www.openwall.com/lists/oss-security/2016/10/03/1
Mailing List
http://www.openwall.com/lists/oss-security/2016/10/03/4
Third Party Advisory
http://www.securityfocus.com/bid/93274
Mailing List
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html
Third Party Advisory
https://security.gentoo.org/glsa/201611-11
More from Qemu
10.0
CVE-2022-36648
The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier, allows remote attackers to crash the host qemu and potentially…
10.0
CVE-2017-16845
hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access
10.0
CVE-2015-8556
Local privilege escalation vulnerability in the Gentoo QEMU package before 2.5.0-r1
9.9
CVE-2016-9603
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update…
9.9
CVE-2017-2620
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue