CVE-2015-5252 Path traversal in n/a

What is CVE-2015-5252?

CVE-2015-5252 is a high-severity path traversal vulnerability in Canonical Ubuntu Linux, published on 29 Dec 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

vfs.c in smbd in Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3, when share names with certain substring relationships exist, allows remote attackers to bypass intended file-access restrictions via a symlink that points outside of a share.

Weakness: CWE-264

Which versions are affected by CVE-2015-5252?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Samba Samba.

How do I fix CVE-2015-5252?

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-2015-5252 being exploited?

There is no known exploitation of CVE-2015-5252 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-2015-5252, ECHO-2b52-fcfd-8938, GHSA-v8hr-9qpr-jrwc, UBUNTU-CVE-2015-5252, USN-2855-2.