Upx · Upx · CVE-2017-16869
**Name of the Vulnerable Software and Affected Versions**
UPX version 3.94
**Description**
The issue allows remote attackers to cause a denial of service, resulting in invalid memory access and application crash, or possibly have other unspecified impacts via a crafted Mach-O file. This is related to the `canPack` and `unpack` functions. The vendor has stated that there is no security implication.
**Recommendations**
For UPX version 3.94, consider avoiding the use of crafted Mach-O files to minimize the risk of exploitation. As a temporary workaround, consider restricting the use of the `canPack` and `unpack` functions until further guidance is available. At the moment, there is no information about a newer version that contains a fix for this issue.