Home/CVE/Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size
CVE

CVE-2018-18438

Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size

Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.

MEDIUM · CVSS 5.5 EPSS 0.00091
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

3
qemuall versions
redhat enterprise linuxall versions
redhat openstackall versions
◈

Sigma Hunt Rules

1
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
▣

Scoring & Timeline

5.5
MEDIUM · 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 NVD19 Oct 2018 · 10:29 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

6
suse-csafSUSE-SU-2019:14011-1
suse-csafSUSE-SU-2019:0825-1
suse-csafSUSE-SU-2019:0827-1
suse-csafSUSE-SU-2019:13921-1
suse-csafSUSE-SU-2018:3987-1
🔗

References & Sources

4
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/2018/10/17/3Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/105953Third Party AdvisoryVDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02396.htmlMailing ListPatchThird Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg02402.htmlMailing ListPatchThird Party Advisory
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