What’s Vulnerable › Vulnerabilities

CVE-2020-13253

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-05-27 · updated 2026-06-17
• Weakness: CWE-125

Description

sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.04, 20.04
• Debian Linux: 9.0, 10.0
• QEMU: through 5.0.1

References

• http://www.openwall.com/lists/oss-security/2020/05/27/2
• https://bugzilla.redhat.com/show_bug.cgi?id=1838546
• https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
• https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
• https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html
• https://security.gentoo.org/glsa/202011-09
• https://usn.ubuntu.com/4467-1/
• http://www.openwall.com/lists/oss-security/2020/05/27/2
• https://bugzilla.redhat.com/show_bug.cgi?id=1838546
• https://lists.debian.org/debian-lts-announce/2020/09/msg00013.html
• https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html
• https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html

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