CVE-2019-9948 Path traversal in n/a

What is CVE-2019-9948?

CVE-2019-9948 is a critical path traversal vulnerability in Canonical Ubuntu Linux, published on 23 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

urllib in Python 2.x through 2.7.16 supports the local_file: scheme, which makes it easier for remote attackers to bypass protection mechanisms that blacklist file: URIs, as demonstrated by triggering a urllib.urlopen('local_file:///etc/passwd') call.

Weakness: CWE-22

Which versions are affected by CVE-2019-9948?

It affects 11 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Opensuse Leap, Python Python, Redhat Enterprise Linux Desktop and 5 more.

How do I fix CVE-2019-9948?

Upgrade to a fixed version.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2019-9948 being exploited?

There is no known exploitation of CVE-2019-9948 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 ALPINE-CVE-2019-9948, CLSA-2026-1777393949, CLSA-2026-1777446306, DEBIAN-CVE-2019-9948, DLA-1852-1, GHSA-24p8-x4mp-cq86 and 3 more.