Vulnerability Monitor

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CVE-2015-5239

Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENT_CUT_TEXT message, which triggers an infinite loop.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction requiring only low-level privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 8 products from qemu, from fedoraproject, from canonical and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2020-01-23T20:15:11.887

Last Modified

2024-11-21T02:32:37.607

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

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

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

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-835

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	qemu	qemu	< 2.1.0	Yes
Operating System	fedoraproject	fedora	21	Yes
Operating System	fedoraproject	fedora	22	Yes
Operating System	fedoraproject	fedora	23	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	15.04	Yes
Application	suse	linux_enterprise_debuginfo	11	Yes
Application	suse	linux_enterprise_debuginfo	11	Yes
Operating System	suse	linux_enterprise_desktop	11	Yes
Operating System	suse	linux_enterprise_desktop	11	Yes
Operating System	suse	linux_enterprise_desktop	12	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_software_development_kit	11	Yes
Operating System	suse	linux_enterprise_software_development_kit	11	Yes
Operating System	suse	linux_enterprise_software_development_kit	12	Yes
Operating System	arista	eos	4.12	Yes
Operating System	arista	eos	4.13	Yes
Operating System	arista	eos	4.14	Yes
Operating System	arista	eos	4.15	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html Mailing List, Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html Mailing List, Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00026.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00005.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00011.html Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2015/09/02/7 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.ubuntu.com/usn/USN-2745-1 Patch, Third Party Advisory ([email protected])
https://github.com/qemu/qemu/commit/f9a70e79391f6d7c2a912d785239ee8effc1922d Patch, Third Party Advisory ([email protected])
https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14 Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00026.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00005.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00011.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2015/09/02/7 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/USN-2745-1 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/qemu/qemu/commit/f9a70e79391f6d7c2a912d785239ee8effc1922d Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14 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.