Integer overflow in Qemu
CVE-2020-11869
An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (31.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2020/04/24/2 (Patch, Mailing List, Third Party Advisory)
- git.qemu.org/
- usn.ubuntu.com/4372-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2020-11869?
- CVE-2020-11869 is a low-severity vulnerability in Qemu, classified under Integer Overflow or Wraparound. CVSS score: 3.3/10. Published 2020-04-27.
- How severe is CVE-2020-11869?
- Low severity. CVSS v3 base score is 3.3 out of 10.