OESA-2021-1303

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1303
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2021-1303.json
JSON Data
https://api.test.osv.dev/v1/vulns/OESA-2021-1303
Upstream
Published
2021-08-06T11:03:07Z
Modified
2026-03-11T06:07:11.954309Z
Summary
libass security update
Details

libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format. It is mostly compatible with VSFilter.

Security Fix(es):

libass 0.15.x before 0.15.1 has a heap-based buffer overflow in decodechars (called from decodefont and process_text) because the wrong integer data type is used for subtraction.(CVE-2020-36430)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS-SP2 / libass

Package

Name
libass
Purl
pkg:rpm/openEuler/libass&distro=openEuler-20.03-LTS-SP2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.15.0-2.oe1

Ecosystem specific 

{
    "noarch": [
        "libass-help-0.15.0-2.oe1.noarch.rpm"
    ],
    "src": [
        "libass-0.15.0-2.oe1.src.rpm"
    ],
    "x86_64": [
        "libass-devel-0.15.0-2.oe1.x86_64.rpm",
        "libass-debuginfo-0.15.0-2.oe1.x86_64.rpm",
        "libass-0.15.0-2.oe1.x86_64.rpm",
        "libass-debugsource-0.15.0-2.oe1.x86_64.rpm"
    ],
    "aarch64": [
        "libass-debuginfo-0.15.0-2.oe1.aarch64.rpm",
        "libass-0.15.0-2.oe1.aarch64.rpm",
        "libass-debugsource-0.15.0-2.oe1.aarch64.rpm",
        "libass-devel-0.15.0-2.oe1.aarch64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2021-1303.json"