Denial of Service via heap-based buffer overflow

Summary

A security flaw has been discovered in radareorg radare2 up to 6.1.6. This issue affects the function r_bin_java_inner_classes_attr_calc_size of the file shlr/java/class.c of the component RBinJava Line Number Table Parser. Performing a manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The patch is named cd62d15a6cbecdc67fd03f3ebdbbbeb741d18f87. To fix this issue, it is recommended to deploy a patch. This can lead to a heap-based buffer overflow, resulting in a denial of service. This Low impact flaw in radare2's RBinJava Line Number Table Parser allows a local attacker to trigger a heap-based buffer overflow. By manipulating the `r_bin_java_inner_classes_attr_calc_size` function, an attacker can cause a denial of service. Red Hat severity: Low — CVSS 3.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L). Weakness: CWE-131.