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CVE-2021-32495

Quick assessment

Affected
radare2 radare2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

radare2是一套用于处理二进制文件的库和工具。 Radare2存在安全漏洞，该漏洞源于在get_none_object函数中存在内存释放后重用漏洞，攻击者可以读取释放的内存造成拒绝服务。

CVSS 10.0 · Critical EPSS 0.77% · P54
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I. Basic Information for CVE-2021-32495

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory afterwards. This will allow attackers to cause denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Radare2 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
radare2是一套用于处理二进制文件的库和工具。 Radare2存在安全漏洞，该漏洞源于在get_none_object函数中存在内存释放后重用漏洞，攻击者可以读取释放的内存造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
radare2 radare2 radare2 5.3.0-git 26142 -

II. Public POCs for CVE-2021-32495

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III. Intelligence Information for CVE-2021-32495

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Patches & Fixes for CVE-2021-32495 (1)

Other References for CVE-2021-32495 (1)

IV. Related Vulnerabilities

Same product: radare2
Same vendor: radare2
Same weakness: CWE-416

V. Comments for CVE-2021-32495

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