Vulnerabilities (CVE)

Filtered by vendor Upx Subscribe
Total 34 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-20053 2 Opensuse, Upx 3 Backports, Leap, Upx 2025-04-11 4.3 MEDIUM 5.5 MEDIUM
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.
CVE-2021-43314 1 Upx 1 Upx 2025-04-11 N/A 7.5 HIGH
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
CVE-2021-43311 1 Upx 1 Upx 2025-04-11 N/A 7.5 HIGH
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.
CVE-2021-43316 1 Upx 1 Upx 2025-04-11 N/A 7.5 HIGH
A heap-based buffer overflow was discovered in upx, during the generic pointer 'p' points to an inaccessible address in func get_le64().
CVE-2019-14295 1 Upx 1 Upx 2025-04-11 4.3 MEDIUM 5.5 MEDIUM
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.
CVE-2020-27787 1 Upx 1 Upx 2025-04-11 N/A 5.5 MEDIUM
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.
CVE-2019-20051 2 Fedoraproject, Upx 2 Fedora, Upx 2025-04-11 4.3 MEDIUM 5.5 MEDIUM
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.
CVE-2020-24119 2 Fedoraproject, Upx 2 Fedora, Upx 2025-04-11 5.8 MEDIUM 7.1 HIGH
A heap buffer overflow read was discovered in upx 4.0.0, because the check in p_lx_elf.cpp is not perfect.
CVE-2021-20285 1 Upx 1 Upx 2025-04-11 8.3 HIGH 6.6 MEDIUM
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.
CVE-2023-23456 2 Fedoraproject, Upx 2 Fedora, Upx 2025-04-11 N/A 5.3 MEDIUM
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.
CVE-2021-30500 3 Fedoraproject, Redhat, Upx 3 Fedora, Enterprise Linux, Upx 2025-04-11 6.8 MEDIUM 7.8 HIGH
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.
CVE-2020-27799 1 Upx 1 Upx 2025-04-11 N/A 7.8 HIGH
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.
CVE-2020-27796 1 Upx 1 Upx 2025-04-11 N/A 7.8 HIGH
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.
CVE-2021-43317 1 Upx 1 Upx 2025-04-11 N/A 7.5 HIGH
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