CVE-2020-13143 Information disclosure in n/a

Medium 6.5 Published Updated

Attackers can trigger an out-of-bounds read in the Linux kernel USB gadget driver by exploiting a null byte handling flaw, potentially disclosing sensitive memory.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2020-13143?

CVE-2020-13143 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 18 May 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c in the Linux kernel 3.16 through 5.6.13 relies on kstrdup without considering the possibility of an internal '\0' value, which allows attackers to trigger an out-of-bounds read, aka CID-15753588bcd4.

Weakness: CWE-125

Which versions are affected by CVE-2020-13143?

It affects 24 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Netapp A700s Firmware, Netapp Active Iq Unified Manager, Netapp Bootstrap Os and 18 more.

How do I fix CVE-2020-13143?

Apply the vendor's patch.

Is CVE-2020-13143 being exploited?

There is no known exploitation of CVE-2020-13143 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-13143, GHSA-q5ch-c53x-9gxj, UBUNTU-CVE-2020-13143.

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