CVE-2016-5126 Memory corruption in n/a

What is CVE-2016-5126?

CVE-2016-5126 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 1 Jun 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Heap-based buffer overflow in the iscsi_aio_ioctl function in block/iscsi.c in QEMU allows local guest OS users to cause a denial of service (QEMU process crash) or possibly execute arbitrary code via a crafted iSCSI asynchronous I/O ioctl call.

Weakness: CWE-787

Which versions are affected by CVE-2016-5126?

It affects 12 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Oracle Linux, Qemu Qemu, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus and 6 more.

How do I fix CVE-2016-5126?

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-2016-5126 being exploited?

There is no known exploitation of CVE-2016-5126 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-2016-5126, GHSA-qgv9-9qpm-r86f, UBUNTU-CVE-2016-5126.