Out-of-bounds Read in Qemu
CVE-2023-1544
A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to allocate and initialize a huge number of page tables to be used as a ring of descriptors for CQ and async events, potentially leading to an out-of-bounds read and crash of QEMU.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (21.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Qemu
- Fedoraproject Fedora — versions 37
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/security/cve/CVE-2023-1544 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (Patch, Mailing List, Issue Tracking, Vendor Advisory)
- lists.nongnu.org/archive/html/qemu-devel/2023-03/msg00206.html (Patch, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20230511-0005/
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-1544?
- CVE-2023-1544 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Read. CVSS score: 6.0/10. Published 2023-03-23.
- How severe is CVE-2023-1544?
- Medium severity. CVSS v3 base score is 6.0 out of 10.
- Is CVE-2023-1544 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.