CVE-2016-6834

MEDIUM

Qemu < 2.6.2 - Buffer Overflow

Title source: rule

Description

The net_tx_pkt_do_sw_fragmentation function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via a zero length for the current fragment length.

References (7)

[Patch] http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ead315e43ea0c2ca3491209c6c8db8ce3f2bbe05

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/08/11/8

[Mailing List, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/08/18/7

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/92446

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

[Patch, Third Party Advisory] https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01601.html

[Third Party Advisory] https://security.gentoo.org/glsa/201609-01

Scores

CVSS v3 4.4

EPSS 0.0011

EPSS Percentile 29.4%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-120

Status published

Affected Products (6)

qemu/qemu < 2.6.2

qemu/qemu

qemu/qemu

qemu/qemu

debian/debian_linux

n/a/n/a

Timeline

Published Dec 10, 2016

Tracked Since Feb 18, 2026