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CVE-2020-36430
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 6.8/10
- Exploit Score
- 8.6/10
- Access Vector
- Network
- Access Complexity
- Medium
- Authentication Required
- None
- Impact Score
- 6.4/10
- Confidentiality Impact
- Partial
- Availability Impact
- Partial
- Integrity Impact
- Partial
CVSSv3.1 Score
- Severity
- High
- Base Score
- 7.8/10
- Exploit Score
- 1.8/10
- Access Vector
- Local
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 5.9/10
- Confidentiality Impact
- High
- Availability Impact
- High
- Integrity Impact
- High
- Scope
- Unchanged
- User Interaction
- Required
Products Affected
CPE | Affected | Vulnerable | Excluding | Edit |
---|---|---|---|---|
cpe:2.3:a:libass_project:libass:*:*:*:*:*:*:*:* |
Yes
|
0.15.0 | 0.15.1 | |
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
Yes
|
- | - |
References
- https://github.com/libass/libass/commit/017137471d0043e0321e377ed8da48e45a3ec632
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libass/OSV-2020-2099.yaml
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26674
- https://security.gentoo.org/glsa/202208-13
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org