An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as…
Priority LOW 19CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Partial Red Hat: 2 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.35.1. A heap-based buffer over-read can occur in bfd_getl_signed_32 in libbfd.c because sh_entsize is not validated in _bfd_elf_slurp_secondary_reloc_section in elf.c.
Why it matters now
EPSS 0.01238 69th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2021:4364 Released 2021-11-09 · Red Hat rating Moderatebinutils security update
- Red Hat Enterprise Linux AppStream (v. 8) binutils-devel-2.30-108.el8
- Red Hat Enterprise Linux BaseOS (v. 8) binutils-2.30-108.el8
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:4364 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2021:4364 |
Not affected: 2 products
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2020-35448
- 2026-10-03 Alias added: GHSA-r2cj-jqqc-j833
References
Sources
- CVE-2020-35448 · CVE Program
- CVE-2020-35448 · NVD
- FIRST EPSS
- GHSA-r2cj-jqqc-j833 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-35448 · Red Hat security data · CC BY 4.0
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