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CVE-2020-37239— libbabl 0.1.62 Broken Double Free Detection Memory Safety

CVSS 9.8 · Critical EPSS 0.08% · P25

Possible ATT&CK Techniques 1AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProductVersion RangeStatus
Gegllibbabl0.1.62affected
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I. Basic Information for CVE-2020-37239

Vulnerability Information
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Vulnerability Title
libbabl 0.1.62 Broken Double Free Detection Memory Safety
Source: NVD (National Vulnerability Database)
Vulnerability Description
libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety checks by exploiting signature overwriting in freed chunks. Attackers can call babl_free() twice on the same pointer without triggering detection, as libc's malloc metadata overwrites babl's signature field upon freeing, enabling potential memory corruption and code execution.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
双重释放
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Gegllibbabl 0.1.62 -

II. Public POCs for CVE-2020-37239

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III. Intelligence Information for CVE-2020-37239

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IV. Related Vulnerabilities

Same weakness: CWE-415

V. Comments for CVE-2020-37239

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