What’s Vulnerable › Vulnerabilities

CVE-2019-20326

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-03-16 · updated 2026-06-17
• Weakness: CWE-787

Description

A heap-based buffer overflow in _cairo_image_surface_create_from_jpeg() in extensions/cairo_io/cairo-image-surface-jpeg.c in GNOME gThumb before 3.8.3 and Linux Mint Pix before 2.4.5 allows attackers to cause a crash and potentially execute arbitrary code via a crafted JPEG file.

Affected products

• Debian Linux: 9.0
• GNOME Gthumb: before 3.8.3 — fixed in 3.8.3
• LinuxMint Pix: before 2.4.5 — fixed in 2.4.5

How to fix

Upgrade to a fixed version: GNOME Gthumb 3.8.3; LinuxMint Pix 2.4.5. Check the vendor advisory for mitigations.

References

• https://github.com/Fysac/CVE-2019-20326
• https://gitlab.gnome.org/GNOME/gthumb/commit/4faa5ce2358812d23a1147953ee76f59631590ad
• https://gitlab.gnome.org/GNOME/gthumb/commit/ca8f528209ab78935c30e42fe53bdf1a24f3cb44
• https://gitlab.gnome.org/GNOME/gthumb/commits/master/extensions/cairo_io/cairo-image-surface-jpeg.c
• https://lists.debian.org/debian-lts-announce/2021/08/msg00027.html
• https://security.gentoo.org/glsa/202008-05
• https://github.com/Fysac/CVE-2019-20326
• https://gitlab.gnome.org/GNOME/gthumb/commit/4faa5ce2358812d23a1147953ee76f59631590ad
• https://gitlab.gnome.org/GNOME/gthumb/commit/ca8f528209ab78935c30e42fe53bdf1a24f3cb44
• https://gitlab.gnome.org/GNOME/gthumb/commits/master/extensions/cairo_io/cairo-image-surface-jpeg.c
• https://lists.debian.org/debian-lts-announce/2021/08/msg00027.html
• https://security.gentoo.org/glsa/202008-05

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