Out-of-bounds Read in Qemu
CVE-2020-13253
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.6% 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
- Qemu
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
- Debian Linux — versions 9.0, 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.html (Patch, Mailing List, Third Party Advisory)
- www.openwall.com/lists/oss-security/2020/05/27/2 (Patch, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/4467-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/09/msg00013.html (mailing-list, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202011-09 (vendor-advisory, 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-2020-13253?
- CVE-2020-13253 is a medium-severity vulnerability in Qemu, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2020-05-27.
- How severe is CVE-2020-13253?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-13253 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.