Bug 1937784 (CVE-2021-20284) - CVE-2021-20284 binutils: Heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c
Summary: CVE-2021-20284 binutils: Heap-based buffer overflow in _bfd_elf_slurp_seconda...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-20284
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1943301 1949308 1961525 1961526
Blocks: 1937793 1937804
TreeView+ depends on / blocked
 
Reported: 2021-03-11 14:44 UTC by Pedro Sampaio
Modified: 2021-11-09 22:24 UTC (History)
22 users (show)

Fixed In Version:
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Doc Text:
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.
Clone Of:
Environment:
Last Closed: 2021-11-09 22:24:01 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4364 0 None None None 2021-11-09 18:28:44 UTC

Description Pedro Sampaio 2021-03-11 14:44:33 UTC 
A flaw was found in GNU Binutils 2.35.1. There is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c because the number of symbols is not caculated correctly.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=26931
Comment 3 Pedro Sampaio 2021-03-25 18:28:01 UTC 
Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1943301]
Comment 7 Stefan Cornelius 2021-05-18 07:55:43 UTC 
Patch:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f60742b2a1988d276c77d5c1011143f320d9b4cb
Comment 8 errata-xmlrpc 2021-11-09 18:28:41 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4364 https://access.redhat.com/errata/RHSA-2021:4364
Comment 9 Product Security DevOps Team 2021-11-09 22:23:57 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-20284
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