CVE-2018-18605

A heap-based buffer over-read issue was discovered in the function sec_merge_hash_lookup in merge.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31, because _bfd_add_merge_section mishandles section merges when size is not a multiple of entsize. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.

CVSS v3.0

5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

2.32% chance of exploitation in the next 30 days, 82th percentile

Published

2018-10-23

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://sourceware.org/bugzilla/show_bug.cgi?id=23804

References

• CVE Record
• NVD entry

Related

• CVE-2018-18603
• CVE-2018-18606
• CVE-2018-18599
• CVE-2018-18607
• CVE-2018-18570
• CVE-2018-18608