Vulnerability Description
sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process.
CVSS Score
5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Qemu | Qemu | <= 5.0.1 |
| Canonical | Ubuntu Linux | 16.04 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/05/27/2Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1838546Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing ListThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.htmlMailing ListPatchThird Party Advisory
- https://security.gentoo.org/glsa/202011-09Third Party Advisory
- https://usn.ubuntu.com/4467-1/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/05/27/2Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1838546Issue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/09/msg00013.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing ListThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.htmlMailing ListPatchThird Party Advisory
- https://security.gentoo.org/glsa/202011-09Third Party Advisory
- https://usn.ubuntu.com/4467-1/Third Party Advisory
FAQ
What is CVE-2020-13253?
CVE-2020-13253 is a vulnerability with a CVSS score of 5.5 (MEDIUM). sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process.
How severe is CVE-2020-13253?
CVE-2020-13253 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-13253?
Check the references section above for vendor advisories and patch information. Affected products include: Qemu Qemu, Canonical Ubuntu Linux, Debian Debian Linux.