CVE-2019-3462 Code injection in apt as used in Debian Stretch and Ubuntu

What is CVE-2019-3462?

CVE-2019-3462 is a high-severity code injection vulnerability in Canonical Ubuntu Linux, published on 28 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Incorrect sanitation of the 302 redirect field in HTTP transport method of apt versions 1.4.8 and earlier can lead to content injection by a MITM attacker, potentially leading to remote code execution on the target machine.

Which versions are affected by CVE-2019-3462?

It affects 5 products.

Products include Canonical Ubuntu Linux, Debian Advanced Package Tool, Debian Debian Linux, Netapp Active Iq, Netapp Element Software.

How do I fix CVE-2019-3462?

Apply the vendor's patch.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2019-3462 being exploited?

There is no known exploitation of CVE-2019-3462 in the wild and no public exploit code.

Public exploit code: 2 proofs of concept on GitHub.

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-2019-3462, DLA-1637-1, DSA-4371-1, GHSA-q857-rhg5-4j49, UBUNTU-CVE-2019-3462, USN-3863-1.