PT-2019-4607 · Qemu+3 · Qemu+3

Michael Hanselmann · Published 2019-02-19 · Updated 2023-02-12 · CVE-2019-3812

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions QEMU versions 2.10 through 3.1.0

Description The issue is related to an out-of-bounds read of up to 128 bytes in the i2c ddc() function, located in the hw/i2c/i2c-ddc.c file. A local attacker with permission to execute i2c commands could exploit this to read stack memory of the qemu process on the host, potentially revealing protected information.

Recommendations For QEMU versions 2.10 through 3.1.0, consider restricting access to the i2c ddc() function in the hw/i2c/i2c-ddc.c file until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Buffer Overflow

Weakness Enumeration

CWE-125

CWE-119

Related Identifiers

ALT-PU-2019-1973

ALT-PU-2019-1990

BDU:2020-00722

CVE-2019-3812

DSA-4454-1

DSA-4454-2

OPENSUSE-SU-2019:1405-1

OPENSUSE-SU-2019_1274-1

OPENSUSE-SU-2019_1405-1

SUSE-SU-2019:1238-1

SUSE-SU-2019:1239-1

USN-3923-1

Affected Products

Alt Linux

Qemu

Suse

Ubuntu

References · 131

• https://usn.ubuntu.com/3923-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-3812 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2019-4640.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-3812 · Security Note
• https://bdu.fstec.ru/vul/2020-00756 · Security Note
• https://ubuntu.com/security/CVE-2018-16872 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3812 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-3812 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12130 · Security Note
• https://ubuntu.com/security/CVE-2019-3812 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20124 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-3812 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20125 · Security Note
• https://bdu.fstec.ru/vul/2020-00704 · Security Note
• https://ubuntu.com/security/CVE-2018-20124 · Vendor Advisory