CVE-2020-35448

low

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.

References

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8642dafaef21aa6747cec01df1977e9c52eb4679

https://sourceware.org/bugzilla/show_bug.cgi?id=26574

https://security.netapp.com/advisory/ntap-20210129-0008/

https://security.gentoo.org/glsa/202107-24

Details

Source: MITRE

Published: 2020-12-27

Updated: 2022-04-26

Type: CWE-125

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 3.3

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Impact Score: 1.4

Exploitability Score: 1.8

Severity: LOW