Bug 2026740 (CVE-2021-4021) - CVE-2021-4021 radare2: uncontrolled resource consumption via specially crafted ELF64 binary for MIPS architecture
Summary: CVE-2021-4021 radare2: uncontrolled resource consumption via specially crafte...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-4021
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: 2027695 2027696
Blocks: 2026741
TreeView+ depends on / blocked
 
Reported: 2021-11-25 17:03 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-02-15 18:33 UTC (History)
2 users (show)

Fixed In Version: radare2 5.6.2, radare2 5.6.0, radare2 5.5.4 and radare2 5.5.2
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Doc Text:
A vulnerability was found in Radare2 5.5.0 and in previous versions. Mapping a huge section filled with zeros of an ELF64 binary for MIPS architecture can lead to uncontrolled resource consumption and DoS.
Clone Of:
Environment:
Last Closed: 2021-11-30 13:10:03 UTC
Embargoed:

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Description Guilherme de Almeida Suckevicz 2021-11-25 17:03:52 UTC 
A vulnerability was found in Radare2 5.5.0 and in previous versions. Mapping a huge section filled with zeros of an ELF64 binary for MIPS architecture can lead to uncontrolled resource consumption and DoS.

Reference:
https://github.com/radareorg/radare2/issues/19436
Comment 1 Guilherme de Almeida Suckevicz 2021-11-30 13:07:06 UTC 
Created radare2 tracking bugs for this issue:

Affects: epel-all [bug 2027696]
Affects: fedora-all [bug 2027695]
Comment 2 Product Security DevOps Team 2021-11-30 13:10:01 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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