What is CVE-2018-19876?

CVE-2018-19876 is a medium-severity vulnerability in Cairographics Cairo, classified under Use After Free. CVSS score: 6.5/10. Published 2018-12-05.

How severe is CVE-2018-19876?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Is CVE-2018-19876 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Cairographics Cairo

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 application crash with a "free(): invalid pointer" error.

Vulnerability class: Use-After-Free

EPSS: 0.017 (75.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Cairographics Cairo — versions 1.16.0
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

References

cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-19876?: CVE-2018-19876 is a medium-severity vulnerability in Cairographics Cairo, classified under Use After Free. CVSS score: 6.5/10. Published 2018-12-05.
How severe is CVE-2018-19876?: Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2018-19876 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.