Описание
7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain a heap out-of-bounds read in 7-Zip Ar handler BSD SYMDEF parser. A 4-byte heap out-of-bounds read exists in the Unix ar archive parser in 7-Zip. When parsing a BSD-style __.SYMDEF symbol table, the ParseLibSymbols function reads a 32-bit namesSize field via Get32 at a position that can equal the buffer size, reading 4 bytes past the end of the heap allocation. This reads uninitialized heap data under the default allocator. Version 26.01 patches the issue.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| 7zip | fixed | 26.01+dfsg-1 | package | |
| 7zip | no-dsa | trixie | package | |
| 7zip | fixed | 22.01+really26.01+dfsg-0+deb12u1 | bookworm | package |
| p7zip | fixed | 16.02+transitional.1 | package | |
| p7zip | fixed | 16.02+really26.01+dfsg-0+deb12u1 | bookworm | package |
Примечания
Since p7zip/16.02+transitional.1 src:p7zip is only a empty source package
depending on 7zip. Mark this version as fixed version.
https://securitylab.github.com/advisories/GHSL-2026-115_GHSL-2026-122_7-zip/
Связанные уязвимости
7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain a heap out-of-bounds read in 7-Zip Ar handler BSD SYMDEF parser. A 4-byte heap out-of-bounds read exists in the Unix ar archive parser in 7-Zip. When parsing a BSD-style __.SYMDEF symbol table, the ParseLibSymbols function reads a 32-bit namesSize field via Get32 at a position that can equal the buffer size, reading 4 bytes past the end of the heap allocation. This reads uninitialized heap data under the default allocator. Version 26.01 patches the issue.
7-Zip is a file archiver with a high compression ratio. Versions 9.18 through 26.00 contain a heap out-of-bounds read in 7-Zip Ar handler BSD SYMDEF parser. A 4-byte heap out-of-bounds read exists in the Unix ar archive parser in 7-Zip. When parsing a BSD-style __.SYMDEF symbol table, the ParseLibSymbols function reads a 32-bit namesSize field via Get32 at a position that can equal the buffer size, reading 4 bytes past the end of the heap allocation. This reads uninitialized heap data under the default allocator. Version 26.01 patches the issue.
Уязвимость функции ParseLibSymbols() архиватора 7-Zip, позволяющая нарушителю раскрыть защищаемую информацию
