CVE-2024-3447
Qemu: sdhci: heap buffer overflow in sdhci_write_dataport()
- Published
- Updated
- Reserved
- Assigned by
- fedora
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.
Timeline
ID reserved
By fedora
- 7 months later
· 7 months later
Published
- 18 months later
· 18 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| fedoraCNA (assigner) | 3.1 | Medium6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.56% · top 53% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.0.
Weakness
Affected products
qemu
- affected 1.5.0 – < 9.0.0
Red Hat · Red Hat Enterprise Linux 6
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 7
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 7
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 8
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 8 Advanced Virtualization
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 9
All versions: unaffected
References (7)
- https://access.redhat.com/security/cve/CVE-2024-3447 (opens in a new tab)vdb-entryx_refsource_REDHAT
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58813 (opens in a new tab)
- RHBZ#2274123 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://patchew.org/QEMU/[email protected]/ (opens in a new tab)
- https://security.netapp.com/advisory/ntap-20250425-0005/ (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/04/msg00042.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-577017.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-3447)Record last updated .