CVE-2019-20326 — A heap-based buffer overflow in _cairo_image_surface_create_from_jpeg() in exten

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.

01What is this vulnerability?

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.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-03-16T21:33:36.000Z
• Last modified: 2024-08-05T02:39:09.903Z

09References

• gitlab.gnome.org — https://gitlab.gnome.org/GNOME/gthumb/commit/4faa5ce2358812d23a1147953ee76f59631…
• gitlab.gnome.org — https://gitlab.gnome.org/GNOME/gthumb/commit/ca8f528209ab78935c30e42fe53bdf1a24f…
• gitlab.gnome.org — https://gitlab.gnome.org/GNOME/gthumb/commits/master/extensions/cairo_io/cairo-i…
• github.com — https://github.com/Fysac/CVE-2019-20326
• security.gentoo.org — https://security.gentoo.org/glsa/202008-05
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2021/08/msg00027.html