A segmentation fault was discovered in radare2 with adf command. In libr/core/cmd_anal.c, when command "adf" has no or wrong argument, anal_fcn_data (core, input + 1) --> RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, core->offset, -1); returns null pointer for fcn causing segmentation fault later in ensure_fcn_range (fcn).

A double free issue was discovered in radare2 in cmd_info.c:cmd_info(). Successful exploitation could lead to modification of unexpected memory locations and potentially causing a crash.

An off-by-one overflow flaw was found in radare2 due to mismatched array length in core_java.c. This could allow an attacker to cause a crash, and perform a denail of service attack.

A heap buffer overflow vulnerability in the r_asm_swf_disass function of Radare2-extras before commit e74a93c allows attackers to execute arbitrary code or carry out denial of service (DOS) attacks.

radare2 4.5.0 misparses signature information in PE files, causing a segmentation fault in r_x509_parse_algorithmidentifier in libr/util/x509.c. This is due to a malformed object identifier in IMAGE_DIRECTORY_ENTRY_SECURITY.

radare2 4.5.0 misparses DWARF information in executable files, causing a segmentation fault in parse_typedef in type_dwarf.c via a malformed DW_AT_name in the .debug_info section.

Command injection in Radare2

In radare2 before version 4.5.0, malformed PDB file names in the PDB server path cause shell injection. To trigger the problem it's required to open the executable in radare2 and run idpd to trigger the download. The shell code will execute, and will create a file called pwned in the current directory.

radare2 through 4.0.0 lacks validation of the content variable in the function r_asm_pseudo_incbin at libr/asm/asm.c, ultimately leading to an arbitrary write. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via crafted input.

In radare2 through 4.0, there is an integer overflow for the variable new_token_size in the function r_asm_massemble at libr/asm/asm.c. This integer overflow will result in a Use-After-Free for the buffer tokens, which can be filled with arbitrary malicious data after the free. This allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted input.

In radare2 before 3.9.0, a command injection vulnerability exists in bin_symbols() in libr/core/cbin.c. By using a crafted executable file, it's possible to execute arbitrary shell commands with the permissions of the victim. This vulnerability is due to an insufficient fix for CVE-2019-14745 and improper handling of symbol names embedded in executables.

In radare2 before 3.7.0, a command injection vulnerability exists in bin_symbols() in libr/core/cbin.c. By using a crafted executable file, it's possible to execute arbitrary shell commands with the permissions of the victim. This vulnerability is due to improper handling of symbol names embedded in executables.

In radare2 through 3.5.1, cmd_mount in libr/core/cmd_mount.c has a double free for the ms command.

radare2 through 3.5.1 mishandles the RParse API, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact, as demonstrated by newstr buffer overflows during replace operations. This affects libr/asm/asm.c and libr/parse/parse.c.

In radare2 through 3.5.1, the rcc_context function of libr/egg/egg_lang.c mishandles changing context. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact (invalid memory access in r_egg_lang_parsechar; invalid free in rcc_pusharg).

In radare2 through 3.5.1, there is a heap-based buffer over-read in the r_egg_lang_parsechar function of egg_lang.c. This allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact because of missing length validation in libr/egg/egg.c.

In radare2 2.4.0, there is a heap-based buffer over-read in the get_ivar_list_t function of mach0_classes.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted Mach-O file.

In radare2 2.4.0, there is a heap-based buffer over-read in the dalvik_op function of anal_dalvik.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted dex file.

In radare2 2.4.0, there is a heap-based buffer over-read in the r_asm_disassemble function of asm.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted dex file.

In radare2 prior to 3.1.1, core_anal_bytes in libr/core/cmd_anal.c allows attackers to cause a denial-of-service (application crash caused by out-of-bounds read) by crafting a binary file.

In radare2 prior to 3.1.2, the parseOperands function in libr/asm/arch/arm/armass64.c allows attackers to cause a denial-of-service (application crash caused by stack-based buffer overflow) by crafting an input file.