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CVE-2023-44821

Buffer Overflow vulnerability in gifsicle v.1.92 allows a remote attacker to cause a denial of...

5.5 MediumDisputed

Gifsicle through 1.94, if deployed in a way that allows untrusted input to affect Gif_Realloc calls, might allow a denial of service (memory consumption). NOTE: this has been disputed by multiple parties because the Gifsicle code is not commonly used for unattended operation in which new input arrives for a long-running process, does not ship with functionality to link it into another application as a library, and does not have realistic use cases in which an adversary controls the entire command line.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.33%Up 0.2 points since Oct 10, 2023
90%50%10%1%

What each source reports

NVD Score used 5.5

Gifsicle through 1.94, if deployed in a way that allows untrusted input to affect Gif_Realloc calls, might allow a denial of service (memory consumption). NOTE: this has been disputed by multiple parties because the Gifsicle code is not commonly used for unattended operation in which new input arrives for a long-running process, does not ship with functionality to link it into another application as a library, and does not have realistic use cases in which an adversary controls the entire command line.

Record
CVE-2023-44821
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-401
Updated
2026-11-02
CVE List No score

Gifsicle through 1.94, if deployed in a way that allows untrusted input to affect Gif_Realloc calls, might allow a denial of service (memory consumption). NOTE: this has been disputed by multiple parties because the Gifsicle code is not commonly used for unattended operation in which new input arrives for a long-running process, does not ship with functionality to link it into another application as a library, and does not have realistic use cases in which an adversary controls the entire command line.

Record
CVE-2023-44821
Updated
2026-11-02
EUVDEUVD-2023-49144 No score

Gifsicle through 1.94, if deployed in a way that allows untrusted input to affect Gif_Realloc calls, might allow a denial of service (memory consumption). NOTE: this has been disputed by multiple parties because the Gifsicle code is not commonly used for unattended operation in which new input arrives for a long-running process, does not ship with functionality to link it into another application as a library, and does not have realistic use cases in which an adversary controls the entire command line.

Record
EUVD-2023-49144
Updated
2026-11-02
GitHub AdvisoriesGHSA-vqf3-8wjf-vm68 5.5

Buffer Overflow vulnerability in gifsicle v.1.92 allows a remote attacker to cause a denial of...

Buffer Overflow vulnerability in gifsicle v.1.92 allows a remote attacker to cause a denial of service via the --crop parameter in the command line parameters.

Record
GHSA-vqf3-8wjf-vm68
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-401
Updated
2026-11-02
OSVDEBIAN-CVE-2023-44821 5.5

Gifsicle through 1.94, if deployed in a way that allows untrusted input to affect Gif_Realloc calls, might allow a denial of service (memory consumption). NOTE: this has been disputed by multiple parties because the Gifsicle code is not commonly used for unattended operation in which new input arrives for a long-running process, does not ship with functionality to link it into another application as a library, and does not have realistic use cases in which an adversary controls the entire command line.

Record
DEBIAN-CVE-2023-44821
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV No score

Gifsicle through 1.94, if deployed in a way that allows untrusted input to affect Gif_Realloc calls, might allow a denial of service (memory consumption). NOTE: this has been disputed by multiple parties because the Gifsicle code is not commonly used for unattended operation in which new input arrives for a long-running process, does not ship with functionality to link it into another application as a library, and does not have realistic use cases in which an adversary controls the entire command line.

Record
CVE-2023-44821
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
gifsicle
Debian:12
All versions, plus listed versions
1.93-21.94-11.95-11.95-21.96-11.97-11.98-1
None known
gifsicle
Debian:13
All versions, plus listed versions
1.96-11.97-11.98-1
None known
gifsicle
Debian:14
All versions, plus listed versions
1.96-11.97-11.98-1
None known

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-2023-44821 is a medium vulnerability (CVSS 5.5) in Lcdf Gifsicle, published October 9, 2023. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile.

References

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