What’s Vulnerable › Vulnerabilities

CVE-2015-1779

• Severity: high (CVSS 8.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-01-12 · updated 2026-06-17
• Weakness: CWE-400

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.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 14.10, 15.04
• Debian Linux: 7.0, 8.0
• Fedoraproject Fedora: 21, 22
• Oracle Corporation Oracle Linux: 7
• QEMU: through 2.2.1; 2.3.0-rc0, 2.3.0-rc1
• RedHat Enterprise Linux Eus: 7.1, 7.2, 7.3, 7.4, 7.5, 7.6 (+1)
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Server Aus: 7.3, 7.4, 7.6, 7.7
• RedHat Enterprise Linux Server Tus: 7.3, 7.6, 7.7
• RedHat Enterprise Linux Workstation: 7.0
• RedHat Virtualization: 3.0

References

• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.html
• http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.html
• http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.html
• http://rhn.redhat.com/errata/RHSA-2015-1931.html
• http://rhn.redhat.com/errata/RHSA-2015-1943.html
• http://www.debian.org/security/2015/dsa-3259
• http://www.openwall.com/lists/oss-security/2015/03/24/9
• http://www.openwall.com/lists/oss-security/2015/04/09/6
• http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
• http://www.securityfocus.com/bid/73303
• http://www.securitytracker.com/id/1033975

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