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CVE-2017-7980

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-07-25 · updated 2026-06-17
• Weakness: CWE-119

Description

Heap-based buffer overflow in Cirrus CLGD 54xx VGA Emulator in Quick Emulator (Qemu) 2.8 and earlier allows local guest OS users to execute arbitrary code or cause a denial of service (crash) via vectors related to a VNC client updating its display after a VGA operation.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 16.10, 17.04
• Debian Linux: 8.0
• QEMU: through 2.8
• RedHat Enterprise Linux Desktop: 6.0, 7.0
• RedHat Enterprise Linux Server: 6.0, 7.0
• RedHat Enterprise Linux Server Aus: 7.3, 7.4, 7.6
• RedHat Enterprise Linux Server Eus: 7.3, 7.4, 7.5, 7.6
• RedHat Enterprise Linux Server Tus: 7.3, 7.6
• RedHat Enterprise Linux Workstation: 6.0, 7.0
• OpenStack: 6.0, 7.0, 8, 9, 10, 5.0
• RedHat Virtualization: 3.0

References

• http://ubuntu.com/usn/usn-3289-1
• http://www.openwall.com/lists/oss-security/2017/04/21/1
• http://www.securityfocus.com/bid/102129
• http://www.securityfocus.com/bid/97955
• https://access.redhat.com/errata/RHSA-2017:0980
• https://access.redhat.com/errata/RHSA-2017:0981
• https://access.redhat.com/errata/RHSA-2017:0982
• https://access.redhat.com/errata/RHSA-2017:0983
• https://access.redhat.com/errata/RHSA-2017:0984
• https://access.redhat.com/errata/RHSA-2017:0988
• https://access.redhat.com/errata/RHSA-2017:1205
• https://access.redhat.com/errata/RHSA-2017:1206

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