Upxproject Upx

Reachable Assertion vulnerability in upx before 4.0.0

CVE-2021-46179 6.5 - Medium - August 22, 2023

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.

assertion failure

A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address

CVE-2021-43312 7.5 - High - March 24, 2023

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::invert_pt_dynamic at p_lx_elf.cpp:5239.

Memory Corruption

A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address

CVE-2021-43313 7.5 - High - March 24, 2023

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::invert_pt_dynamic at p_lx_elf.cpp:1688.

Memory Corruption

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32()

CVE-2021-43314 7.5 - High - March 24, 2023

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf32::elf_lookup() at p_lx_elf.cpp:5368

Memory Corruption

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32()

CVE-2021-43315 7.5 - High - March 24, 2023

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf32::elf_lookup() at p_lx_elf.cpp:5349

Memory Corruption

A heap-based buffer overflow was discovered in upx

CVE-2021-43316 7.5 - High - March 24, 2023

A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le64().

Memory Corruption

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32()

CVE-2021-43317 7.5 - High - March 24, 2023

A heap-based buffer overflows was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf64::elf_lookup() at p_lx_elf.cpp:5404

Memory Corruption

A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32()

CVE-2021-43311 7.5 - High - March 24, 2023

A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le32(). The problem is essentially caused in PackLinuxElf32::elf_lookup() at p_lx_elf.cpp:5382.

Memory Corruption

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file

CVE-2023-23456 5.5 - Medium - January 12, 2023

A heap-based buffer overflow issue was discovered in UPX in PackTmt::pack() in p_tmt.cpp file. The flow allows an attacker to cause a denial of service (abort) via a crafted file.

Memory Corruption

A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() in p_lx_elf.cpp

CVE-2023-23457 5.5 - Medium - January 12, 2023

A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.

Buffer Overflow

An floating point exception was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0

CVE-2020-27802 5.5 - Medium - August 25, 2022

An floating point exception was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.

Divide By Zero

A heap-based buffer over-read was discovered in the get_le64 function in bele.h in UPX 4.0.0

CVE-2020-27801 7.8 - High - August 25, 2022

A heap-based buffer over-read was discovered in the get_le64 function in bele.h in UPX 4.0.0 via a crafted Mach-O file.

Out-of-bounds Read

A heap-based buffer over-read was discovered in the get_le32 function in bele.h in UPX 4.0.0

CVE-2020-27800 7.8 - High - August 25, 2022

A heap-based buffer over-read was discovered in the get_le32 function in bele.h in UPX 4.0.0 via a crafted Mach-O file.

Out-of-bounds Read

A heap-based buffer over-read was discovered in the acc_ua_get_be32 function in miniacc.h in UPX 4.0.0

CVE-2020-27799 7.8 - High - August 25, 2022

A heap-based buffer over-read was discovered in the acc_ua_get_be32 function in miniacc.h in UPX 4.0.0 via a crafted Mach-O file.

Out-of-bounds Read

An invalid memory address reference was discovered in the adjABS function in p_lx_elf.cpp in UPX 4.0.0

CVE-2020-27798 5.5 - Medium - August 25, 2022

An invalid memory address reference was discovered in the adjABS function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.

Release of Invalid Pointer or Reference

An invalid memory address reference was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0

CVE-2020-27797 5.5 - Medium - August 25, 2022

An invalid memory address reference was discovered in the elf_lookup function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.

Release of Invalid Pointer or Reference

A heap-based buffer over-read was discovered in the invert_pt_dynamic function in p_lx_elf.cpp in UPX 4.0.0

CVE-2020-27796 7.8 - High - August 25, 2022

A heap-based buffer over-read was discovered in the invert_pt_dynamic function in p_lx_elf.cpp in UPX 4.0.0 via a crafted Mach-O file.

Out-of-bounds Read

An out-of-bounds read access vulnerability was discovered in UPX in PackLinuxElf64::canPack() function of p_lx_elf.cpp file

CVE-2020-27788 5.5 - Medium - August 18, 2022

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

Out-of-bounds Read

A Segmentaation fault was found in UPX in invert_pt_dynamic() function in p_lx_elf.cpp

CVE-2020-27787 5.5 - Medium - August 18, 2022

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

A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf.cpp file

CVE-2020-27790 5.5 - Medium - August 18, 2022

A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf.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.

Divide By Zero

An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.0

CVE-2021-30501 5.5 - Medium - May 27, 2021

An assertion abort was found in upx MemBuffer::alloc() in mem.cpp, in version UPX 4.0.0. The flow allows attackers to cause a denial of service (abort) via a crafted file.

assertion failure

Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0

CVE-2021-30500 7.8 - High - May 27, 2021

Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file.

NULL Pointer Dereference

A heap buffer overflow read was discovered in upx 4.0.0

CVE-2020-24119 7.1 - High - May 14, 2021

A heap buffer overflow read was discovered in upx 4.0.0, because the check in p_lx_elf.cpp is not perfect.

Out-of-bounds Read

A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96

CVE-2021-20285 6.6 - Medium - March 26, 2021

A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.

Memory Corruption

An invalid memory address dereference was discovered in the canUnpack function in p_mach.cpp in UPX 3.95

CVE-2019-20053 5.5 - Medium - December 27, 2019

An invalid memory address dereference was discovered in the canUnpack function in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

Buffer Overflow

A floating-point exception was discovered in PackLinuxElf::elf_hash in p_lx_elf.cpp in UPX 3.95

CVE-2019-20051 5.5 - Medium - December 27, 2019

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

Incorrect Calculation

A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95

CVE-2019-20021 5.5 - Medium - December 27, 2019

A heap-based buffer over-read was discovered in canUnpack in p_mach.cpp in UPX 3.95 via a crafted Mach-O file.

Out-of-bounds Read

An Integer overflow in the getElfSections function in p_vmlinx.cpp in UPX 3.95

CVE-2019-14295 5.5 - Medium - July 27, 2019

An Integer overflow in the getElfSections function in p_vmlinx.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.

Integer Overflow or Wraparound

canUnpack in p_vmlinx.cpp in UPX 3.95

CVE-2019-14296 7.8 - High - July 27, 2019

canUnpack in p_vmlinx.cpp in UPX 3.95 allows remote attackers to cause a denial of service (SEGV or buffer overflow, and application crash) or possibly have unspecified other impact via a crafted UPX packed file.

Buffer Overflow

PackLinuxElf64::unpack in p_lx_elf.cpp in UPX 3.95

CVE-2018-11243 7.8 - High - May 18, 2018

PackLinuxElf64::unpack in p_lx_elf.cpp in UPX 3.95 allows remote attackers to cause a denial of service (double free), limit the ability of a malware scanner to operate on the entire original data, or possibly have unspecified other impact via a crafted file.

Double-free

p_mach.cpp in UPX 3.94

CVE-2017-16869 7.8 - High - November 17, 2017

p_mach.cpp in UPX 3.94 allows remote attackers to cause a denial of service (invalid memory access and application crash) or possibly have unspecified other impact via a crafted Mach-O file, related to canPack and unpack functions. NOTE: the vendor has stated "there is no security implication whatsoever.

Buffer Overflow