UnRAR - (bulletinjul2017)ID: oval:org.secpod.oval:def:2101293 | Date: (C)2019-12-31 (M)2021-12-31 |
Class: PATCH | Family: unix |
A VMSF_DELTA memory corruption was discovered in unrar before 5.5.5, as used in Sophos Anti-Virus Threat Detection Engine before 3.37.2 and other products, that can lead to arbitrary code execution. An integer overflow can be caused in DataSize+CurChannel. The result is a negative value of the "DestPos" variable, which allows the attacker to write out of bounds when setting Mem[DestPos].