Use After Free in Qemu
CVE-2020-25084
QEMU 5.0.0 has a use-after-free in hw/usb/hcd-xhci.c because the usb_packet_map return value is not checked.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.2 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.003 (25.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 25.6% 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 — versions 5.0.0
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.nongnu.org/archive/html/qemu-devel/2020-08/msg08050.html (Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/09/16/5 (Patch, Mailing List, Third Party Advisory)
- security.netapp.com/advisory/ntap-20201009-0005/ (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/02/msg00024.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/09/msg00008.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25084?
- CVE-2020-25084 is a low-severity vulnerability in Qemu, classified under Use After Free. CVSS score: 3.2/10. Published 2020-09-25.
- How severe is CVE-2020-25084?
- Low severity. CVSS v3 base score is 3.2 out of 10.
- Is CVE-2020-25084 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.