Home/CVE/Qemu has a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used.
CVE

CVE-2018-17962

Qemu has a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used.

Qemu has a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used.

HIGH · CVSS 7.5 EPSS 0.00264
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules9 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

6
qemuall versions
canonical ubuntu linuxall versions
debian linuxall versions
oracle linuxall versions
redhat linuxall versions
suse linux enterprise serverall versions
⚠

Public Exploits & PoCs

1
poclists.gnu.org · msg03268.htmllists.gnu.org
◈

Sigma Hunt Rules

9
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
productcriticalLinux Reverse Shell Indicator
producthighCommunication To LocaltoNet Tunneling Service Initiated - Linux
producthighPotentially Suspicious Malware Callback Communication - Linux
producthighLinux Crypto Mining Pool Connections
producthighCommunication To Ngrok Tunneling Service - Linux
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · 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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

15
suse-csafSUSE-SU-2018:3973-2
rhsaRHSA-2019:2892Low
suse-csafSUSE-SU-2019:14011-1
suse-csafSUSE-SU-2019:0825-1
suse-csafSUSE-SU-2019:0827-1
🔗

References & Sources

7
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.htmlThird Party Advisory
https://usn.ubuntu.com/3826-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4338Third Party Advisory
https://access.redhat.com/security/cve/cve-2018-17962Third Party Advisory
https://linux.oracle.com/cve/CVE-2018-17962.htmlThird Party Advisory
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