CVE-2020-36430
CVSS V2 Medium 6.8
CVSS V3 High 7.8
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.
Overview
- CVE ID
- CVE-2020-36430
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-07-20T07:15:07
- Last Modified Date
- 2022-12-09T18:35:54
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:libass_project:libass:*:*:*:*:*:*:*:* | 1 | OR | 0.15.0 | 0.15.1 |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674 | Issue Tracking Patch Third Party Advisory |
| https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml | Third Party Advisory |
| https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632 | Patch Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6JUXFQUJ32GWG5E46A63DFDCYJAF3VU6/ | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202208-13 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-36430 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-36430 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:41:54 | Added to TrackCVE | |||
| 2022-12-05 06:28:40 | 2021-07-20T07:15Z | 2021-07-20T07:15:07 | CVE Published Date | updated |
| 2022-12-05 06:28:40 | 2022-08-10T20:15:18 | CVE Modified Date | updated | |
| 2022-12-05 06:28:40 | Undergoing Analysis | Vulnerability Status | updated | |
| 2022-12-05 06:28:44 | References | updated | ||
| 2022-12-09 19:13:57 | 2022-12-09T18:35:54 | CVE Modified Date | updated | |
| 2022-12-09 19:13:57 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |