CVE-2017-16548 Memory corruption in n/a

What is CVE-2017-16548?

CVE-2017-16548 is a critical memory corruption vulnerability in Canonical Ubuntu Linux, published on 6 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The receive_xattr function in xattrs.c in rsync 3.1.2 and 3.1.3-development does not check for a trailing '\0' character in an xattr name, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) or possibly have unspecified other impact by sending crafted data to the daemon.

Weakness: CWE-125

Which versions are affected by CVE-2017-16548?

It affects 3 products.

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

How do I fix CVE-2017-16548?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-16548 being exploited?

There is no known exploitation of CVE-2017-16548 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-2017-16548, DEBIAN-CVE-2017-16548, GHSA-vp2c-23x9-j4wq, MGASA-2017-0459, UBUNTU-CVE-2017-16548.