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.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
The product reads data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3812 | issue tracking third party advisory patch |
| http://www.securityfocus.com/bid/107059 | vdb entry third party advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGCFIFSIWUREEQQOZDZFBYKWZHXCWBZN/ | vendor advisory |
| https://usn.ubuntu.com/3923-1/ | third party advisory vendor advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KJMTVGDLA654HNCDGLCUEIP36SNJEKK7/ | vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00094.html | mailing list third party advisory vendor advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00040.html | vendor advisory |
| https://www.debian.org/security/2019/dsa-4454 | vendor advisory |
| https://seclists.org/bugtraq/2019/May/76 | mailing list |