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CVE-2020-27795

Date: August 19, 2022

A segmentation fault was discovered in radare2 with adf command. In libr/core/cmd_anal.c, when command "adf" has no or wrong argument, anal_fcn_data (core, input + 1) --> RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, core->offset, -1); returns null pointer for fcn causing segmentation fault later in ensure_fcn_range (fcn).

Language: C

Severity Score

Related Resources (7)

https://security-tracker.debian.org/tracker/CVE-2020-27795
https://github.com/radareorg/radare2/commit/4d3811681a80f92a53e795f6a64c4b0fc2c8dd22
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-27795
https://github.com/radareorg/radare2/issues/16215
https://github.com/radareorg/radare2/pull/16230
https://nvd.nist.gov/vuln/detail/CVE-2020-27795
https://www.mend.io/vulnerability-database/CVE-2020-27795

Severity Score

Weakness Type (CWE)

Use of Uninitialized Resource

CWE-908

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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