Buffer overflow in Qemu
CVE-2019-3812
QEMU, through version 2.10 and through version 3.1.0, is vulnerable to an out-of-bounds read of up to 128 bytes in the hw/i2c/i2c-ddc.c:i2c_ddc() function. A local attacker with permission to execute i2c commands could exploit this to read stack memory of the qemu process on the host.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (35.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Qemu
- The Qemu Project — versions through version 2.10 and through to 3.1.0
- Canonical Ubuntu_linux — versions 18.04, 18.10
- Fedoraproject Fedora — versions 29, 30
- Opensuse Leap — versions 42.3
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (vendor-advisory, x_refsource_SUSE)
- secalert@redhat.com (vendor-advisory, x_refsource_DEBIAN)
- secalert@redhat.com (mailing-list, x_refsource_BUGTRAQ)
Frequently asked questions
- What is CVE-2019-3812?
- CVE-2019-3812 is a medium-severity vulnerability in Qemu, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.4/10. Published 2019-02-19.
- How severe is CVE-2019-3812?
- Medium severity. CVSS v3 base score is 4.4 out of 10.