A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func getle64().

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func getle32(). The problem is essentially caused in PackLinuxElf32::elflookup() at plxelf.cpp:5349

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func getle32(). The problem is essentially caused in PackLinuxElf64::elflookup() at plxelf.cpp:5404

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func getle32(). The problem is essentially caused in PackLinuxElf32::elflookup() at plxelf.cpp:5368

A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func getle32(). The problem is essentially caused in PackLinuxElf32::elflookup() at plxelf.cpp:5382.

A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf32::invertptdynamic at plxelf.cpp:1688.

A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf64::invertptdynamic at plxelf.cpp:5239.

Reachable Assertion vulnerability in upx before 4.0.0 allows attackers to cause a denial of service via crafted file passed to the the readx function.

A floating-point exception was discovered in PackLinuxElf::elfhash in plxelf.cpp in UPX 3.95. The vulnerability causes an application crash, which leads to denial of service.

plxelf.cpp in UPX before 3.96 has an integer overflow during unpacking via crafted values in a PTDYNAMIC segment.

An Integer overflow in the getElfSections function in pvmlinx.cpp in UPX 3.95 allows remote attackers to cause a denial of service (crash) via a skewed offset larger than the size of the PE section in a UPX packed executable, which triggers an allocation of excessive memory.

A floating point exception issue was discovered in UPX in PackLinuxElf64::invertptdynamic() function of plxelf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service. The highest impact is to Availability.

An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() function of plxelf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service.

A Segmentaation fault was found in UPX in invertptdynamic() function in plxelf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.