CVE-2020-36430 - Vulnerability Details - OpenCVE

Description

libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.

Published: 2021-07-20

Score: 7.8 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:libass_project:libass:*:*:*:*:*:*:*:*

Configuration 2 [-]

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-23958	libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decode_chars (called from decode_font and process_text) because the wrong integer data type is used for subtraction.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00311.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674
https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml
https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/
https://security.gentoo.org/glsa/202208-13

History

No history.

Subscriptions

Fedoraproject Fedora

Libass Project Libass

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-07-20T06:47:14.000Z

Updated: 2024-08-04T17:30:08.337Z

Reserved: 2021-07-20T00:00:00.000Z

Link: CVE-2020-36430

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-07-20T07:15:07.817

Modified: 2024-11-21T05:29:29.613

Link: CVE-2020-36430

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-787

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