CVE-2020-35448 — Out-of-bounds Read in Binutils

CWE-125 — Out-of-bounds ReadCWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-787 — Out-of-bounds Write6 documents6 sources
Severity
3.3LOWNVD
EPSS
0.3%
top 44.30%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
GNU Binutils
Timeline
PublishedDec 27
Latest updateMay 24

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 vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:NExploitability: 1.8 | Impact: 1.4

Affected Packages2 packages

▶Debiangnu/binutils< 2.37-3+2
▶NVDgnu/binutils2.35.1

🔴Vulnerability Details

3
GHSA
GHSA-r2cj-jqqc-j833: An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2↗2022-05-24
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OSV
CVE-2020-35448: An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2↗2020-12-27
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CVEList
CVE-2020-35448: An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2↗2020-12-27
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📋Vendor Advisories

2
Red Hat
binutils: Heap-based buffer overflow in bfd_getl_signed_32() in libbfd.c because sh_entsize is not validated in _bfd_elf_slurp_secondary_reloc_section() in elf.c↗2020-09-04
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Debian
CVE-2020-35448: binutils - An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd)...↗2020
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CVE-2020-35448 — Out-of-bounds Read in GNU Binutils | cvebase