CVE-2020-13765 Memory corruption in n/a

What is CVE-2020-13765?

CVE-2020-13765 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 4 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

rom_copy() in hw/core/loader.c in QEMU 4.0 and 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.

Weakness: CWE-787

Which versions are affected by CVE-2020-13765?

It affects 3 products.

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

How do I fix CVE-2020-13765?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-13765 being exploited?

There is no known exploitation of CVE-2020-13765 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-2020-13765, GHSA-pf9q-2ff3-67r4, UBUNTU-CVE-2020-13765.