radare2 adf Command libr/core/cmd_anal.c anal_fcn_data memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.4 | $0-$5k | 0.00 |
A vulnerability has been found in radare2 (Programming Tool Software) (affected version unknown) and classified as critical. Affected by this vulnerability is the function anal_fcn_data
of the file libr/core/cmd_anal.c of the component adf Command Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
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).
The weakness was released 08/20/2022 as 16215. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2020-27795 since 10/27/2020. Technical details of the vulnerability are known, but there is no available exploit.
Applying the patch 4d3811681a80f92a53e795f6a64c4b0fc2c8dd22 is able to eliminate this problem. The bugfix is ready for download at github.com.
Product
Type
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.5VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: 4d3811681a80f92a53e795f6a64c4b0fc2c8dd22
Timeline
10/27/2020 🔍08/20/2022 🔍
08/20/2022 🔍
09/24/2022 🔍
Sources
Advisory: 16215Status: Confirmed
CVE: CVE-2020-27795 (🔍)
Entry
Created: 08/20/2022 08:53Updated: 09/24/2022 07:44
Changes: 08/20/2022 08:53 (43), 09/24/2022 07:44 (11)
Complete: 🔍
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