Home/CVE/The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (
CVE

CVE-2016-2857

The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (

The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.

HIGH · CVSS 8.4 EPSS 0.00058
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

11
qemu<= 2.5.1.1
canonical ubuntu linuxall versions
debian linuxall versions
redhat openstackall versions
redhat virtualizationall versions
redhat enterprise linux desktopall versions
redhat enterprise linux eusall versions
redhat enterprise linux serverall versions
◈

Sigma Hunt Rules

2
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotentially Suspicious Usage Of Qemu
productmediumPowershell Detect Virtualization Environment
▣

Scoring & Timeline

8.4
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD12 Apr 2016 · 02:00 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
⚑

Vendor Advisories

15
rhsaRHSA-2017:0334Important
rhsaRHSA-2017:0350Important
rhsaRHSA-2017:0309Important
rhsaRHSA-2017:0344Important
suse-csafSUSE-SU-2016:1785-1
🔗

References & Sources

16
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://git.qemu.org/?p=qemu.git
http://rhn.redhat.com/errata/RHSA-2016-2670.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2671.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2704.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2705.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2706.htmlThird Party Advisory
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