Описание
Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| libarchive | fixed | 3.2.1-1 | package |
Примечания
http://blog.talosintel.com/2016/06/the-poisoned-archives.html
http://www.talosintel.com/reports/TALOS-2016-0152/
https://github.com/libarchive/libarchive/issues/718
Requirement: https://github.com/libarchive/libarchive/commit/3d469df8eaace8297a27ce62befa295c0fdc5a3a
Fixed by: https://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573 (v3.2.1)
Notice introduction of UMAX_ENTRY with 3d469df8eaace8297a27ce62befa295c0fdc5a3a
Libarchive 3.1.2 and lower has a much smaller "UMAX_ENTRY", which is hardcoded
in various places before 3d469df8eaace8297a27ce62befa295c0fdc5a3a and has value
1000000, making exploitation more difficult but not impossible.
Связанные уязвимости
Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.
Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.
Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.
Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.
