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CVE-2018-19876

cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free...

6.5 MediumFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.71%Up 1.0 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

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.

Record
CVE-2018-19876
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-416
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2018-19876
Updated
2026-11-02
EUVDEUVD-2018-11550 No score

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.

Record
EUVD-2018-11550
Updated
2026-11-02
GitHub AdvisoriesGHSA-m5xr-7jg3-vh46 6.5

cairo 1.16.0, in cairo_ft_apply_variations() in cairo-ft-font.c, would free memory using a free...

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.

Record
GHSA-m5xr-7jg3-vh46
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-416
Updated
2026-11-02
OSVALPINE-CVE-2018-19876 6.5

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.

Record
ALPINE-CVE-2018-19876
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVBELL-CVE-2018-19876 6.5

CVE-2018-19876 does not affect BellSoft software

Record
BELL-CVE-2018-19876
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 6.5

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.

Record
CVE-2018-19876
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-19876 6.5

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.

Record
DEBIAN-CVE-2018-19876
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVJLSEC-2025-14 6.5

cairo 1.16.0, in `cairo_ft_apply_variations()` in cairo-ft-font.c, would free memory using a free...

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.

Record
JLSEC-2025-14
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
cairo
Alpine:v3.10
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.11
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.12
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.13
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.14
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.15
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.16
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.17
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.18
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.19
 before 1.16.0-r1
1.16.0-r1
Show 10 moreShow less
Affected packages
PackageAffectedFixed
cairo
Alpine:v3.20
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.21
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.22
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.23
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.24
 before 1.16.0-r1
1.16.0-r1
cairo
Alpine:v3.9
 before 1.16.0-r1
1.16.0-r1
cairo
Debian:12
 before 1.16.0-4
1.16.0-4
cairo
Debian:13
 before 1.16.0-4
1.16.0-4
cairo
Debian:14
 before 1.16.0-4
1.16.0-4
Cairo_jll
Julia
 1.16.0+0 up to 1.18.0+0
1.18.0+0

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-19876 is a medium vulnerability (CVSS 6.5) in Cairographics Cairo, published December 5, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.71%, the 77th percentile. Fixed in cairo 1.16.0-r1.

References

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