CVE-2018-18309: gnu binutils

Vulnerability summary

CVE-2018-18309 is a medium (CVSS 5.5) vulnerability in gnu binutils. EPSS estimates a 1.82% chance of exploitation in the next 30 days, higher than 78.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 15-10-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. An invalid memory address dereference was discovered in read_reloc in reloc.c. The vulnerability causes a segmentation fault and application crash, which leads to denial of service, as demonstrated by objdump, because of missing _bfd_clear_contents bounds checking.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.