Exploit Avast! - Integer Overflow Verifying numFonts in TTC Header

Exploiter

Хакер
34,644
0
18 Дек 2022
EDB-ID
38934
Проверка EDB
  1. Пройдено
Автор
GOOGLE SECURITY RESEARCH
Тип уязвимости
DOS
Платформа
WINDOWS
CVE
null
Дата публикации
2015-12-10
Avast! - Integer Overflow Verifying numFonts in TTC Header
Код:
Source: https://code.google.com/p/google-security-research/issues/detail?id=549

If the numFonts field in the TTC header is greater than (SIZE_MAX+1) / 4, an integer overflow occurs in filevirus_ttf() when calling CSafeGenFile::SafeLockBuffer.

The TTC file format is described here https://www.microsoft.com/typography/otspec/otff.htm

Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/38934.zip
 
Источник
www.exploit-db.com

Похожие темы