CVE-2018-18309
Publication date 15 October 2018
Last updated 18 August 2025
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| binutils | 25.10 questing |
Not affected
|
| 25.04 plucky |
Not affected
|
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Fixed 2.30-21ubuntu1~18.04.3
|
|
| 16.04 LTS xenial |
Fixed 2.26.1-1ubuntu1~16.04.8+esm1
|
|
| 14.04 LTS trusty |
Vulnerable
|
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| Package | Patch details |
|---|---|
| binutils |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.5 · Medium
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-4336-1
- GNU binutils vulnerabilities
- 22 April 2020
- USN-4336-2
- GNU binutils vulnerabilities
- 21 July 2021