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[email protected]NVD:CVE-2020-36430

HistoryJul 20, 2021 - 7:15 a.m.

CVE-2020-36430

2021-07-2007:15:07

CWE-787

[email protected]

web.nvd.nist.gov

libass 0.15.x

buffer overflow

decode_chars

subtraction

integer data type

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.001

Percentile

43.8%

JSON

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.

Affected configurations

Nvd

Node

libass_projectlibassRange0.15.0–0.15.1

Node

fedoraprojectfedoraMatch34

VendorProductVersionCPE
libass_projectlibass*cpe:2.3:a:libass_project:libass:*:*:*:*:*:*:*:*
fedoraprojectfedora34cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*