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Vulnerabilities

Vulnerability · CVE-2018-19876

cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an applicati…

Published Dec 5, 2018 · catalog updated Oct 15, 2026 · the affected product

Check if you run it

No confirmed exploitation is on record for CVE-2018-19876. EPSS is 1.71%. Act only if a listed version of the affected product is installed.

Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.71%
Remediation
Advisory link
Affected products
cpe cairographics/cairo

cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an application crash with a "free(): invalid pointer" error.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe cairographics/cairo1.16.0

How to fix CVE-2018-19876

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2018-19876. EPSS is 1.71%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Compare what you have installed with 1.16.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-416: Use After Free. EPSS 1.71%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 5, 2018 · NIST NVD

    Detected

    cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an application crash with a "free(): invalid pointer" error.

  2. Jun 17, 2026 · NIST NVD

    Updated

    cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an application crash with a "free(): invalid pointer" error.

  3. Oct 15, 2026 · NIST NVD

    Updated

    cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an application crash with a "free(): invalid pointer" error.

Sources

  • CVE.orgVulnerability recordCVE-2018-19876

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2018-19876

    30-day exploitation probability 1.7%

    first.org
  • NIST NVDVulnerability recordCVE-2018-19876

    cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free function incompatible with WebKit's fastMalloc, leading to an application crash with a "free(): invalid pointer" error.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.