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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.4 MEDIUM
LOCAL
LOW
HIGH
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 23%
VendorProductVersion
qemuqemu
𝑥
≤ 2.8.1.1
qemuqemu
2.9.0:rc0
qemuqemu
2.9.0:rc1
qemuqemu
2.9.0:rc2
qemuqemu
2.9.0:rc3
qemuqemu
2.9.0:rc4
qemuqemu
2.9.0:rc5
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qemu
bullseye
1:5.2+dfsg-11+deb11u3
fixed
jessie
not-affected
wheezy
not-affected
bullseye (security)
1:5.2+dfsg-11+deb11u2
fixed
bookworm
1:7.2+dfsg-7+deb12u7
fixed
sid
1:9.1.1+ds-2
fixed
trixie
1:9.1.1+ds-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qemu
zesty
not-affected
yakkety
Fixed 1:2.6.1+dfsg-0ubuntu5.4
released
xenial
Fixed 1:2.5+dfsg-5ubuntu10.11
released
trusty
not-affected
precise
dne
qemu-kvm
zesty
dne
yakkety
dne
xenial
dne
trusty
dne
precise
not-affected
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
http://www.openwall.com/lists/oss-security/2016/10/03/1
http://www.openwall.com/lists/oss-security/2016/10/03/4
http://www.securityfocus.com/bid/93274
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html
https://security.gentoo.org/glsa/201611-11
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
http://www.openwall.com/lists/oss-security/2016/10/03/1
http://www.openwall.com/lists/oss-security/2016/10/03/4
http://www.securityfocus.com/bid/93274
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05556.html
https://security.gentoo.org/glsa/201611-11