Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2018-11806

m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.2, requiring local system access to exploit with relatively low complexity without requiring user interaction . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 12 products from qemu, from canonical, from redhat and 9 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

2018-06-13T16:29:01.483

Last Modified

2024-11-21T03:44:04.397

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.2 (HIGH)

CVSSv2 Vector

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

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	qemu	qemu	≤ 2.12.1	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
Application	redhat	openstack	8	Yes
Application	redhat	openstack	9	Yes
Application	redhat	openstack	10	Yes
Application	redhat	openstack	12	Yes
Application	redhat	openstack	13	Yes
Operating System	redhat	enterprise_linux_desktop	6.0	Yes
Operating System	redhat	enterprise_linux_desktop	7.0	Yes
Operating System	redhat	enterprise_linux_eus	7.5	Yes
Operating System	redhat	enterprise_linux_eus	7.6	Yes
Operating System	redhat	enterprise_linux_eus	7.7	Yes
Operating System	redhat	enterprise_linux_server	6.0	Yes
Operating System	redhat	enterprise_linux_server	7.0	Yes
Operating System	redhat	enterprise_linux_server_aus	7.6	Yes
Operating System	redhat	enterprise_linux_server_aus	7.7	Yes
Operating System	redhat	enterprise_linux_server_tus	7.6	Yes
Operating System	redhat	enterprise_linux_server_tus	7.7	Yes
Operating System	redhat	enterprise_linux_workstation	6.0	Yes
Operating System	redhat	enterprise_linux_workstation	7.0	Yes
Application	redhat	virtualization	4.0	Yes
Operating System	redhat	enterprise_linux	7.0	No
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes

References

http://www.openwall.com/lists/oss-security/2018/06/07/1 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/104400 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2018:2462 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2762 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2822 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2018:2887 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2019:2892 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1586245 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2019/05/msg00010.html Mailing List, Third Party Advisory ([email protected])
https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html Mailing List, Third Party Advisory ([email protected])
https://seclists.org/bugtraq/2019/May/76 Mailing List, Third Party Advisory ([email protected])
https://usn.ubuntu.com/3826-1/ Third Party Advisory ([email protected])
https://www.debian.org/security/2019/dsa-4454 Third Party Advisory ([email protected])
https://www.zerodayinitiative.com/advisories/ZDI-18-567/ Third Party Advisory, VDB Entry ([email protected])
http://www.openwall.com/lists/oss-security/2018/06/07/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/104400 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2462 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2762 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2822 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:2887 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2019:2892 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1586245 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2019/05/msg00010.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/May/76 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/2019/dsa-4454 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.zerodayinitiative.com/advisories/ZDI-18-567/ Third Party Advisory, VDB Entry (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.