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CVE-2021-20284

Date: March 26, 2021

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.

Language: C

Severity Score

Related Resources (11)

https://security-tracker.debian.org/tracker/CVE-2021-20284
https://nvd.nist.gov/vuln/detail/CVE-2021-20284
https://github.com/bminor/binutils-gdb/commit/f60742b2a1988d276c77d5c1011143f320d9b4cb
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-20284
https://access.redhat.com/security/cve/CVE-2021-20284
https://security.netapp.com/advisory/ntap-20210521-0010/
https://security.gentoo.org/glsa/202208-30
https://access.redhat.com/errata/RHSA-2021:4364
https://bugzilla.redhat.com/show_bug.cgi?id=1937784
https://sourceware.org/bugzilla/show_bug.cgi?id=26931
https://www.mend.io/vulnerability-database/CVE-2021-20284

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Out-of-bounds Write

CWE-787

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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