Vulnerability Details : 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.

Published 2018-12-05 20:29:00

Updated 2019-01-31 19:27:23

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2018-19876

Probability of exploitation activity in the next 30 days: 0.10%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 40 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-19876

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	nvd@nist.gov
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.5	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	2.8	3.6	nvd@nist.gov
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2018-19876

CWE-416 Use After Free

Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-19876

https://bugs.webkit.org/show_bug.cgi?id=191595

191595 – [FreeType] Problem under WebCore::FontPlatformData::FontPlatformData
Issue Tracking;Patch;Third Party Advisory
https://gitlab.freedesktop.org/cairo/cairo/merge_requests/5

ft: Use FT_Done_MM_Var instead of free when available in cairo_ft_apply_variations (!5) · Merge Requests · cairo / cairo · GitLab
Patch;Third Party Advisory

Products affected by CVE-2018-19876

Cairographics » Cairo » Version: 1.16.0
cpe:2.3:a:cairographics:cairo:1.16.0:*:*:*:*:*:*:*
Matching versions