NULL pointer dereference in Gnu Binutils
CVE-2018-20651
A NULL pointer dereference was discovered in elf_link_add_object_symbols in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31.1. This occurs for a crafted ET_DYN with no program headers. A specially crafted ELF file allows remote attackers to cause a denial of service, as demonstrated by ld.
EPSS: 0.022 (81.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Gnu Binutils — versions 2.31.1
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (vendor-advisory, x_refsource_SUSE)
- cve@mitre.org (x_refsource_UBUNTU, vendor-advisory)
Frequently asked questions
- What is CVE-2018-20651?
- CVE-2018-20651 is a medium-severity vulnerability in Gnu Binutils, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2019-01-01.
- How severe is CVE-2018-20651?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-20651 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.