CVE-2019-15034 — hw/display/bochs-display

hw/display/bochs-display.c in QEMU 4.0.0 does not ensure a sufficient PCI config space allocation, leading to a buffer overflow involving the PCIe extended config space.

01What is this vulnerability?

hw/display/bochs-display.c in QEMU 4.0.0 does not ensure a sufficient PCI config space allocation, leading to a buffer overflow involving the PCIe extended config space.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-03-10T17:19:02.000Z
• Last modified: 2024-08-05T00:34:53.171Z

09References

• lists.gnu.org — https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg01959.html
• lists.opensuse.org — http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
• www.debian.org — https://www.debian.org/security/2020/dsa-4665
• usn.ubuntu.com — https://usn.ubuntu.com/4372-1/