PT-2019-15879 · Radare2+1 · Radare2+1
Mmmdzz
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Publicado
2019-12-05
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Atualizado
2020-08-24
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CVE-2019-19590
CVSS v3.1
7.8
Alta
| Vetor | AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
radare2 versions prior to 4.0
Description
The issue is related to an integer overflow for the
new token size variable in the r asm massemble function, located in libr/asm/asm.c. This overflow results in a Use-After-Free condition for the tokens buffer, which can be filled with arbitrary malicious data after it is freed. This allows remote attackers to cause a denial of service, potentially leading to an application crash, or possibly execute arbitrary code via crafted input.Recommendations
For versions prior to 4.0, update to version 4.0 or later to resolve the issue. As a temporary workaround, consider restricting the input to the
r asm massemble function to minimize the risk of exploitation.Exploit
Correção
DoS
Use After Free
Integer Overflow
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Identificadores relacionados
Produtos afetados
Alt Linux
Radare2