Buffer Growth Vulnerability in HarfBuzz Affects Various Software Applications
CVE-2023-25193

7.5HIGH

Key Information:

Vendor

Harfbuzz Project

Status
Harfbuzz
Vendor
CVE Published:
4 February 2023

What is CVE-2023-25193?

A security flaw in HarfBuzz prior to version 6.0.0 facilitates an O(n^2) growth scenario when processing consecutive marks. This occurs during the glyph attachment process, particularly when the software looks back for base glyphs. Such a vulnerability can potentially allow attackers to degrade system performance through crafted inputs, emphasizing the need for timely updates and security assessments for applications leveraging HarfBuzz.

References

https://github.com/harfbuzz/harfbuzz/commit/85be877925ddb...
https://chromium.googlesource.com/chromium/src/+/e1f324aa...
https://github.com/harfbuzz/harfbuzz/blob/2822b589bc837fa...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.