CVE-2015-7512
CRITICALCVSS 9/10EPSS 7.73%
Last modified
CVE-2015-7512 is a critical-severity vulnerability rated 9/10 on the CVSS scale. Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.. EPSS estimates a 7.73% chance of exploitation in the next 30 days.
Description
Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Qemu | Qemu | <= 2.4.1 | — |
| Qemu | Qemu | 2.5.0 | Rc0 |
| Redhat | Enterprise Linux Desktop | 6.0 | — |
| Redhat | Enterprise Linux Eus | 6.7 | — |
| Redhat | Enterprise Linux Server | 6.0 | — |
| Redhat | Enterprise Linux Workstation | 6.0 | — |
| Redhat | Openstack | 5.0 | — |
| Redhat | Virtualization | 3.0 | — |
| Debian | Debian Linux | 7.0 | — |
| Debian | Debian Linux | 8.0 | — |
| Oracle | Linux | 6 | — |
References
- http://rhn.redhat.com/errata/RHSA-2015-2694.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2695.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2696.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3469Third Party Advisory
- http://www.debian.org/security/2016/dsa-3470Third Party Advisory
- http://www.debian.org/security/2016/dsa-3471Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/11/30/3Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/78230Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1034527Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2694.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2695.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-2696.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3469Third Party Advisory
- http://www.debian.org/security/2016/dsa-3470Third Party Advisory
- http://www.debian.org/security/2016/dsa-3471Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/11/30/3Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/78230Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1034527Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2015-7512?
Buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU, when a guest NIC has a larger MTU, allows remote attackers to cause a denial of service (guest OS crash) or execute arbitrary code via a large packet.
How severe is CVE-2015-7512?
CVE-2015-7512 has a CVSS score of 9/10 (CRITICAL severity). The EPSS model estimates a 7.73% probability of exploitation in the next 30 days.
How do I fix CVE-2015-7512?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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