Buffer overflow in Qemu
CVE-2020-13765
rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.024 (83.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: -0.000
Affected products
- Qemu — versions 4.0.0, 4.1.0
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.qemu.org/
- www.openwall.com/lists/oss-security/2020/06/03/6 (Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20200619-0006/ (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/06/msg00032.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/07/msg00020.html (mailing-list, Mailing List, Third Party Advisory)
- usn.ubuntu.com/4467-1/ (vendor-advisory, Third Party Advisory)
- github.com/qemu/qemu/commit/4f1c6cb2f9afafda05eab150fd2bd284edce6676 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-13765?
- CVE-2020-13765 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Write. CVSS score: 5.6/10. Published 2020-06-04.
- How severe is CVE-2020-13765?
- Medium severity. CVSS v3 base score is 5.6 out of 10.
- Is CVE-2020-13765 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.