Bug 2221280 (CVE-2021-32494) - CVE-2021-32494 radare2: division by zero vulnerability in Mach-O parser's rebase_buffer function
Summary: CVE-2021-32494 radare2: division by zero vulnerability in Mach-O parser's reb...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-32494
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2221281 2221282
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-07-07 18:09 UTC by Pedro Sampaio
Modified: 2023-10-26 11:12 UTC (History)
1 user (show)

Fixed In Version:
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Last Closed: 2023-07-07 22:17:34 UTC
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Description Pedro Sampaio 2023-07-07 18:09:45 UTC 
Radare2 has a division by zero vulnerability in Mach-O parser's rebase_buffer function. This allow attackers to create malicious inputs that can cause denial of service.

References:

https://github.com/radareorg/radare2/issues/18667
https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62
Comment 1 Pedro Sampaio 2023-07-07 18:09:59 UTC 
Created radare2 tracking bugs for this issue:

Affects: epel-all [bug 2221282]
Affects: fedora-all [bug 2221281]
Comment 2 Product Security DevOps Team 2023-07-07 22:17:33 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.
Comment 3 Michal Ambroz 2023-10-26 11:12:12 UTC 
https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62
fixed since release 5.3.0
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