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Vulnerability · Published Nov 14, 2024 · Assigned by fedora

CVE-2024-3447Qemu: sdhci: heap buffer overflow in sdhci_write_dataport()

Medium 6.0

In plain English

A medium-severity heap buffer overflow in qemu. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.0Medium
Exploit odds (30 days)0.6%top 53.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A heap-based buffer overflow was found in the SDHCI device emulation of QEMU. The bug is triggered when both `s->data_count` and the size of `s->fifo_buffer` are set to 0x200, leading to an out-of-bound access. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12qemu1:7.2+dfsg-7+deb12u6DEBIAN-CVE-2024-3447
Debian:13qemu1:8.2.3+ds-1DEBIAN-CVE-2024-3447
Debian:14qemu1:8.2.3+ds-1DEBIAN-CVE-2024-3447
Ubuntu:22.04:LTSqemu1:6.2+dfsg-2ubuntu6.27USN-7744-1
Ubuntu:22.04:LTSqemu1:6.2+dfsg-2ubuntu6.27UBUNTU-CVE-2024-3447
Ubuntu:24.04:LTSqemu1:8.2.2+ds-0ubuntu1.10USN-7744-1
Ubuntu:24.04:LTSqemu1:8.2.2+ds-0ubuntu1.10UBUNTU-CVE-2024-3447

Affected products (as reported)

VendorProductVersions
qemu 1.5.0 – before 9.0.0
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 Advanced Virtualization see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-122 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

References