What’s Vulnerable › Vulnerabilities

CVE-2021-20284

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-26 · updated 2026-06-17
• Weakness: CWE-119

Description

A flaw was found in GNU Binutils 2.35.1, where there is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c due to the number of symbols not calculated correctly. The highest threat from this vulnerability is to system availability.

Affected products

• GNU Binutils: 2.35.1
• NetApp Cloud Backup: all versions
• NetApp ONTAP Select Deploy administration utility: all versions

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1937784
• https://security.gentoo.org/glsa/202208-30
• https://security.netapp.com/advisory/ntap-20210521-0010/
• https://sourceware.org/bugzilla/show_bug.cgi?id=26931
• https://bugzilla.redhat.com/show_bug.cgi?id=1937784
• https://security.gentoo.org/glsa/202208-30
• https://security.netapp.com/advisory/ntap-20210521-0010/
• https://sourceware.org/bugzilla/show_bug.cgi?id=26931

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