CVE-2015-1779
HIGHCVSS 8.6/10EPSS 7.39%
Last modified
CVE-2015-1779 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.. EPSS estimates a 7.39% chance of exploitation in the next 30 days.
Description
The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Qemu | Qemu | <= 2.2.1 | — |
| Qemu | Qemu | 2.3.0 | Rc0 |
| Canonical | Ubuntu Linux | 12.04 | — |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 14.10 | — |
| Canonical | Ubuntu Linux | 15.04 | — |
| Debian | Debian Linux | 7.0 | — |
| Debian | Debian Linux | 8.0 | — |
| Fedoraproject | Fedora | 21 | — |
| Fedoraproject | Fedora | 22 | — |
| Redhat | Enterprise Linux Eus | 7.1 | — |
| Redhat | Enterprise Linux Eus | 7.2 | — |
| Redhat | Enterprise Linux Eus | 7.3 | — |
| Redhat | Enterprise Linux Eus | 7.4 | — |
| Redhat | Enterprise Linux Eus | 7.5 | — |
| Redhat | Enterprise Linux Eus | 7.6 | — |
| Redhat | Enterprise Linux Eus | 7.7 | — |
| Redhat | Enterprise Linux Server | 7.0 | — |
| Redhat | Enterprise Linux Server Aus | 7.3 | — |
| Redhat | Enterprise Linux Server Aus | 7.4 | — |
| Redhat | Enterprise Linux Server Aus | 7.6 | — |
| Redhat | Enterprise Linux Server Aus | 7.7 | — |
| Redhat | Enterprise Linux Server Tus | 7.3 | — |
| Redhat | Enterprise Linux Server Tus | 7.6 | — |
| Redhat | Enterprise Linux Server Tus | 7.7 | — |
| Redhat | Enterprise Linux Workstation | 7.0 | — |
| Redhat | Virtualization | 3.0 | — |
| Oracle | Linux | 7 | — |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1931.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1943.htmlThird Party Advisory
- http://www.debian.org/security/2015/dsa-3259Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/03/24/9Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/04/09/6Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/73303Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1033975Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2608-1Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.htmlMailing List, Patch, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1931.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1943.htmlThird Party Advisory
- http://www.debian.org/security/2015/dsa-3259Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/03/24/9Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/04/09/6Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/73303Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1033975Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2608-1Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.htmlMailing List, Patch, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201602-01Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2015-1779?
The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.
How severe is CVE-2015-1779?
CVE-2015-1779 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 7.39% probability of exploitation in the next 30 days.
How do I fix CVE-2015-1779?
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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Are you affected by CVE-2015-1779?
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