CVE-2020-12829 Integer overflow in n/a

What is CVE-2020-12829?

CVE-2020-12829 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 31 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a denial of service.

Weakness: CWE-190

Which versions are affected by CVE-2020-12829?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Qemu Qemu.

How do I fix CVE-2020-12829?

Apply the vendor's patch.

Is CVE-2020-12829 being exploited?

There is no known exploitation of CVE-2020-12829 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-12829, GHSA-39p4-wghg-36vf, UBUNTU-CVE-2020-12829.