Security readout for executives and security teams
Plain-English summary
CVE-2017-12459 affects GNU Binutils libbfd as distributed in version 2.29 and earlier. A crafted Mach-O file can trigger an out-of-bounds heap write and may lead to code execution. Business risk depends on whether internal tools process untrusted Mach-O files.
Executive priority
Prioritize remediation for systems that automatically process external binary files. If Binutils is only used locally on trusted inputs, urgency is lower, but upgrade planning is still appropriate because code execution is possible.
Technical view
The issue is in bfd_mach_o_read_symtab_strtab in bfd/mach-o.c. Source data describes an out-of-bounds heap write when parsing a crafted Mach-O file in BFD/libbfd from GNU Binutils 2.29 and earlier. No CVSS, CWE, or confirmed fixed version is provided.
Likely exposure
Exposure is most likely in build, analysis, forensics, malware-scanning, or developer systems that use GNU Binutils/libbfd to parse Mach-O files, especially files from external users, repositories, or samples.
Exploitation context
The CVE states remote attackers can use a crafted Mach-O file and possibly achieve code execution. The provided sources do not show KEV listing, active exploitation, public exploit status, or exploitation prerequisites beyond file parsing.
Researcher notes
Evidence is limited. The CVE description names the vulnerable function, affected component, version range, impact, and crafted Mach-O trigger. It does not provide CVSS, CWE, confirmed fixed release, or active exploitation evidence.
Mitigation direction
- Inventory GNU Binutils and libbfd usage across build and analysis systems.
- Check vendor or GNU Binutils guidance for fixed package versions.
- Update affected packages when a trusted vendor fix is available.
- Avoid processing untrusted Mach-O files with affected tooling.
- Sandbox file-analysis workflows that must inspect external binaries.
Validation and detection
- Confirm installed GNU Binutils versions and compare against 2.29 and earlier.
- Identify services or jobs that automatically parse Mach-O files.
- Review package manager advisories for the deployed operating systems.
- Verify updated systems no longer run affected libbfd builds.
- Document any remaining untrusted-file parsing exposure.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-12459 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://sourceware.org/bugzilla/show_bug.cgi?id=21840CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.