Vulnerability Monitor

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CVE-2018-17962

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

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 6 products from qemu, from canonical, from debian and 3 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-10-09T22:29:00.987

Last Modified

2024-11-21T03:55:17.350

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-119
CWE-190

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	qemu	qemu	2.1.0	Yes
Application	qemu	qemu	2.8.0	Yes
Application	qemu	qemu	2.12.0	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	18.10	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	oracle	linux	7	Yes
Operating System	redhat	linux	6.0	Yes
Operating System	suse	linux_enterprise_server	11	Yes
Operating System	suse	linux_enterprise_server	11	Yes
Operating System	suse	linux_enterprise_server	12	Yes
Operating System	suse	linux_enterprise_server	15	Yes

References

http://www.openwall.com/lists/oss-security/2018/10/08/1 Mailing List, Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2019:2892 ([email protected])
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html Third Party Advisory ([email protected])
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03268.html Exploit, Mailing List, Third Party Advisory ([email protected])
https://usn.ubuntu.com/3826-1/ Third Party Advisory ([email protected])
https://www.debian.org/security/2018/dsa-4338 Third Party Advisory ([email protected])
https://access.redhat.com/security/cve/cve-2018-17962 Third Party Advisory ([email protected])
https://linux.oracle.com/cve/CVE-2018-17962.html Third Party Advisory ([email protected])
https://www.suse.com/security/cve/CVE-2018-17962/ Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2018/10/08/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2019:2892 (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03268.html Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3826-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2018/dsa-4338 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For qemu's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.