CVE-2020-12770 Null dereference in n/a

What is CVE-2020-12770?

CVE-2020-12770 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 9 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040.

Which versions are affected by CVE-2020-12770?

It affects 23 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Linux kernel, Netapp A700s Firmware, Netapp Active Iq Unified Manager and 17 more.

How do I fix CVE-2020-12770?

Apply the vendor's patch.

Is CVE-2020-12770 being exploited?

There is no known exploitation of CVE-2020-12770 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-2020-12770, GHSA-hf3r-qpxc-4ph4, UBUNTU-CVE-2020-12770.