CVE-2020-35448: gnu binutils Out-of-bounds Read
Vulnerability summary
CVE-2020-35448 is a medium (CVSS 4.3) Out-of-bounds Read vulnerability in gnu binutils. EPSS estimates a 1.24% chance of exploitation in the next 30 days, higher than 68.6% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 7 · Related 6Timeline
- 27-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST3.3LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS trend
Probability
1.24%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
+0.02 pp
From 1.22% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (sourceware.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
3 vendors · 3 products
References
5 links- sourceware.org/bugzilla/show_bug.cgi?id=26574X Refsource MISCExploitIssue TrackingThird Party Advisory
