Bug 2274123 (CVE-2024-3447) - CVE-2024-3447 QEMU: sdhci: heap buffer overflow in sdhci_write_dataport()
Summary: CVE-2024-3447 QEMU: sdhci: heap buffer overflow in sdhci_write_dataport()
Keywords:
Status: NEW
Alias: CVE-2024-3447
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2274124
Blocks: 2211418
TreeView+ depends on / blocked
 
Reported: 2024-04-09 09:04 UTC by Mauro Matteo Cascella
Modified: 2024-04-10 10:36 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: ---
Doc Text:
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.
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Description Mauro Matteo Cascella 2024-04-09 09:04:44 UTC 
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.

Upstream patch:
https://patchew.org/QEMU/20240404085549.16987-1-philmd@linaro.org/

oss-fuzz bug:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58813
Comment 1 Mauro Matteo Cascella 2024-04-09 09:05:05 UTC 
Created qemu tracking bugs for this issue:

Affects: fedora-all [bug 2274124]
Comment 2 Mauro Matteo Cascella 2024-04-09 16:55:22 UTC 
Patch v2:
https://patchew.org/QEMU/20240409145524.27913-1-philmd@linaro.org/
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