Home/CVE/qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause
CVE

CVE-2018-17963

qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause

qemu_deliver_packet_iov in net/net.c in Qemu accepts packet sizes greater than INT_MAX, which allows attackers to cause a denial of service or possibly have unspecified other impact.

CRITICAL · CVSS 9.8 EPSS 0.01449
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules2 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

7
qemu<= 3.0.0
qemuall versions
debian linuxall versions
canonical ubuntu linuxall versions
redhat openstackall versions
redhat virtualizationall versions
redhat virtualization managerall 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

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
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 NVD09 Oct 2018 · 10:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

21
suse-csafopenSUSE-SU-2024:11287-1
rhsaRHSA-2019:2553Moderate
suse-csafSUSE-SU-2018:3973-2
suse-csafSUSE-SU-2019:14011-1
suse-csafSUSE-SU-2019:0825-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.openwall.com/lists/oss-security/2018/10/08/1Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing ListThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03267.htmlMailing ListPatchThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg06054.htmlMailing ListPatchThird Party Advisory
https://usn.ubuntu.com/3826-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4338Third Party Advisory
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