Gentoo FoundationGLSA-202407-24HarfBuzz: Denial of Service
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
60.8%
Background
HarfBuzz is an OpenType text shaping engine.
Description
Multiple vulnerabilities have been discovered in HarfBuzz. Please review the CVE identifiers referenced below for details.
Impact
hb-ot-layout-gsubgpos.hh in HarfBuzz allows attackers to trigger O(n^2) growth via consecutive marks during the process of looking back for base glyphs when attaching marks.
Workaround
There is no known workaround at this time.
Resolution
All HarfBuzz users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/harfbuzz-7.1.0"
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Gentoo | any | all | media-libs/harfbuzz | < 7.1.0 | UNKNOWN |
Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
Low
EPSS
Percentile
60.8%