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Vulnerability Details : CVE-2016-6834

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.
Publish Date : 2016-12-10 Last Update Date : 2020-10-15
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- CVSS Scores & Vulnerability Types

CVSS Score
2.1
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 120

- Products Affected By CVE-2016-6834

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
2 Application Qemu Qemu * * * * Version Details Vulnerabilities
3 Application Qemu Qemu 2.7.0 RC0 * * Version Details Vulnerabilities
4 Application Qemu Qemu 2.7.0 RC1 * * Version Details Vulnerabilities
5 Application Qemu Qemu 2.7.0 RC2 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Qemu Qemu 4

- References For CVE-2016-6834

http://git.qemu.org/?p=qemu.git;a=commit;h=ead315e43ea0c2ca3491209c6c8db8ce3f2bbe05 CONFIRM
http://www.securityfocus.com/bid/92446
BID 92446 QEMU '/hw/net/net_tx_pkt.c' Packet Fragmentation Denial of Service Vulnerability Release Date:2016-10-03
https://security.gentoo.org/glsa/201609-01
GENTOO GLSA-201609-01
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
MLIST [debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update
http://www.openwall.com/lists/oss-security/2016/08/18/7
MLIST [oss-security] 20160817 Re: CVE request Qemu: an infinite loop during packet fragmentation
http://www.openwall.com/lists/oss-security/2016/08/11/8
MLIST [oss-security] 20160812 CVE request Qemu: an infinite loop during packet fragmentation
https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01601.html
MLIST [qemu-devel] 20160809 [PULL 1/3] net: check fragment length during fragmentation

- Metasploit Modules Related To CVE-2016-6834

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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