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HIGH · 7.8

CVE-2021-45909

An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boun...

Vulnerability Description

An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boundaries of a buffer.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
Gif2Apng ProjectGif2Apng1.9
DebianDebian Linux9.0

Related Weaknesses (CWE)

CWE-787

References

FAQ

What is CVE-2021-45909?

CVE-2021-45909 is a vulnerability with a CVSS score of 7.8 (HIGH). An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boun...

How severe is CVE-2021-45909?

CVE-2021-45909 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-45909?

Check the references section above for vendor advisories and patch information. Affected products include: Gif2Apng Project Gif2Apng, Debian Debian Linux.