Bug 1795155 (CVE-2019-19590) - CVE-2019-19590 radare2: integer overflow in for the variable new_token_size in the function r_asm_massemble at libr/asm/asm.c
Summary: CVE-2019-19590 radare2: integer overflow in for the variable new_token_size i...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-19590
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1795157 1795158
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-01-27 09:48 UTC by Dhananjay Arunesh
Modified: 2020-01-27 14:09 UTC (History)
1 user (show)

Fixed In Version:
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Last Closed: 2020-01-27 14:09:32 UTC


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Description Dhananjay Arunesh 2020-01-27 09:48:45 UTC
A vulnerability was found in radare2 through 4.0, there is an integer overflow for the variable new_token_size in the function r_asm_massemble at libr/asm/asm.c. This integer overflow will result in a Use-After-Free for the buffer tokens, which can be filled with arbitrary malicious data after the free. This allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted input.

Reference:
https://github.com/radareorg/radare2/issues/15543

Comment 1 Dhananjay Arunesh 2020-01-27 09:49:17 UTC
Created radare2 tracking bugs for this issue:

Affects: epel-7 [bug 1795158]
Affects: fedora-all [bug 1795157]

Comment 2 Product Security DevOps Team 2020-01-27 14:09:32 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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