CVE-2016-9928 Privilege escalation in MCabber

What is CVE-2016-9928?

CVE-2016-9928 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 6 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

MCabber before 1.0.4 is vulnerable to roster push attacks, which allows remote attackers to intercept communications, or add themselves as an entity on a 3rd party's roster as another user, which will also garner associated privileges, via crafted XMPP packets.

Weakness: CWE-269

Which versions are affected by CVE-2016-9928?

It affects 3 products.

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

How do I fix CVE-2016-9928?

Upgrade to a fixed version.

Is CVE-2016-9928 being exploited?

There is no known exploitation of CVE-2016-9928 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-2016-9928, DLA-2260-1, DLA-724-1, GHSA-q477-8j82-fjq4, MGASA-2016-0433, UBUNTU-CVE-2016-9928 and 1 more.