CVE-2019-11338 Null dereference in n/a

What is CVE-2019-11338?

CVE-2019-11338 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 18 Apr 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

libavcodec/hevcdec.c in FFmpeg 3.4 and 4.1.2 mishandles detection of duplicate first slices, which allows remote attackers to cause a denial of service (NULL pointer dereference and out-of-array access) or possibly have unspecified other impact via crafted HEVC data.

Weakness: CWE-476

Which versions are affected by CVE-2019-11338?

It affects 4 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Ffmpeg Ffmpeg, Novell Suse Package Hub for Suse Linux Enterprise.

How do I fix CVE-2019-11338?

Upgrade to a fixed version.

Is CVE-2019-11338 being exploited?

There is no known exploitation of CVE-2019-11338 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 CLEANSTART-2024-JG05415, DEBIAN-CVE-2019-11338, GHSA-96rf-5r43-949p, UBUNTU-CVE-2019-11338.