CVE-2019-15133 Denial of service in n/a

What is CVE-2019-15133?

CVE-2019-15133 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 17 Aug 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

In GIFLIB before 2019-02-16, a malformed GIF file triggers a divide-by-zero exception in the decoder function DGifSlurp in dgif_lib.c if the height field of the ImageSize data structure is equal to zero.

Weakness: CWE-369

Which versions are affected by CVE-2019-15133?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Giflib Project Giflib.

How do I fix CVE-2019-15133?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-15133 being exploited?

There is no known exploitation of CVE-2019-15133 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-2019-15133, GHSA-fhp4-279c-9rhq, JLSEC-2026-814, MGASA-2019-0252, UBUNTU-CVE-2019-15133.