CVE-2018-6323
The elf_object_p function in elfcode.h in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29.1, has an unsigned integer overflow because bfd_size_type multiplication is not used.
Does this matter?
A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 5.8%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
Description
The elf_object_p function in elfcode.h in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29.1, has an unsigned integer overflow because bfd_size_type multiplication is not used. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 5.83% probability · 93th percentile
- Public exploits
- 1 in Exploit-DB · first 14 February 2018
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- gnu/binutils
- Source
- cve@mitre.org
EPSS moved from 9.3% on 21 September 2026 to 5.8% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
- http://www.securityfocus.com/bid/102821Third Party Advisory, VDB Entry
- https://sourceware.org/bugzilla/show_bug.cgi?id=22746Exploit, Issue Tracking, Third Party Advisory
- https://www.exploit-db.com/exploits/44035/Exploit, Third Party Advisory, VDB Entry
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00072.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00008.html
- http://www.securityfocus.com/bid/102821Third Party Advisory, VDB Entry
- https://sourceware.org/bugzilla/show_bug.cgi?id=22746Exploit, Issue Tracking, Third Party Advisory
- https://www.exploit-db.com/exploits/44035/Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.