What’s Vulnerable › Vulnerabilities

CVE-2018-5683

• Severity: medium (CVSS 6.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-01-23 · updated 2026-06-17
• Weakness: CWE-125

Description

The vga_draw_text function in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 17.10
• Debian Linux: 8.0, 9.0
• QEMU: through 2.11.1
• RedHat Enterprise Linux Desktop: 6.0, 7.0
• RedHat Enterprise Linux Server: 6.0, 7.0
• RedHat Enterprise Linux Server Aus: 7.6, 7.7
• RedHat Enterprise Linux Server Eus: 7.6, 7.7
• RedHat Enterprise Linux Server Tus: 7.6, 7.7
• RedHat Enterprise Linux Workstation: 6.0, 7.0

References

• http://www.openwall.com/lists/oss-security/2018/01/15/2
• http://www.securityfocus.com/bid/102518
• https://access.redhat.com/errata/RHSA-2018:0816
• https://access.redhat.com/errata/RHSA-2018:1104
• https://access.redhat.com/errata/RHSA-2018:2162
• https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
• https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02597.html
• https://usn.ubuntu.com/3575-1/
• https://www.debian.org/security/2018/dsa-4213
• http://www.openwall.com/lists/oss-security/2018/01/15/2
• http://www.securityfocus.com/bid/102518
• https://access.redhat.com/errata/RHSA-2018:0816

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