CVE-2020-19752

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

7.5 HighFix available

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

1.60%Up 1.2 points since Sep 8, 2021

What each source reports

NVD Score used 7.5

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Record: CVE-2020-19752
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-476
Updated: 2026-11-02

CVE List No score

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Record: CVE-2020-19752
Updated: 2026-11-02

EUVDEUVD-2020-11650 No score

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Record: EUVD-2020-11650
Updated: 2026-11-03

GitHub AdvisoriesGHSA-2j79-5jhx-wg65 7.5

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Record: GHSA-2j79-5jhx-wg65
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-476
Updated: 2026-11-02

OSV 7.5

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Record: CVE-2020-19752
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2020-19752 7.5

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Record: DEBIAN-CVE-2020-19752
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2020-19752 7.5

The find_color_or_error function in gifsicle 1.92 contains a NULL pointer dereference.

Record: UBUNTU-CVE-2020-19752
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`gifsicle` Debian:12	before 1.93-2	1.93-2
`gifsicle` Debian:13	before 1.93-2	1.93-2
`gifsicle` Debian:14	before 1.93-2	1.93-2
`gifsicle` Ubuntu:Pro:14.04:LTS	All versions, plus listed versions 1.71-11.76-11.77-11.78-11.78-1ubuntu0.1~esm1	None known
`gifsicle` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 1.88-11.88-1ubuntu0.1~esm1	None known
`gifsicle` Ubuntu:18.04:LTS	All versions, plus listed versions 1.90-11.91-2	None known
`gifsicle` Ubuntu:20.04:LTS	All versions, plus listed versions 1.92-2	None known
`gifsicle` Ubuntu:22.04:LTS	All versions, plus listed versions 1.92-21.93-2	None known
`gifsicle` Ubuntu:24.04:LTS	All versions, plus listed versions 1.94-1	None known
`gifsicle` Ubuntu:25.10	All versions, plus listed versions 1.95-21.96-1	None known
`gifsicle` Ubuntu:26.10	All versions, plus listed versions 1.96-1build1	None known
`gifsicle` Ubuntu:26.04:LTS	All versions, plus listed versions 1.96-11.96-1build1	None known

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2020-19752 is a high vulnerability (CVSS 7.5) in Lcdf Gifsicle, published September 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.60%, the 75th percentile. Fixed in gifsicle 1.93-2.

References

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