Radare2 5.9.9 radiff2 /libr/cons/cons.c cons_stack_load -T memory corruption ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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2.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Radare2 5.9.9. The impacted element is the function cons_stack_load in the library /libr/cons/cons.c of the component radiff2. This manipulation of the argument -T causes memory corruption. This vulnerability is handled as CVE-2025-5643. It is possible to launch the attack on the local host. Additionally, an exploit exists. The existence of this vulnerability is still disputed at present. To fix this issue, it is recommended to deploy a patch. The documentation explains that the parameter -T is experimental and "crashy". Further analysis has shown "the race is not a real problem unless you use asan". A new warning has been added.

Detailsinfo

A vulnerability classified as problematic was found in Radare2 5.9.9. Affected by this vulnerability is the function cons_stack_load in the library /libr/cons/cons.c of the component radiff2. The manipulation of the argument -T 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 availability.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-5643. The exploitation appears to be difficult. Attacking locally is a requirement. Technical details and also a public exploit are known.

It is possible to download the exploit at drive.google.com. It is declared as proof-of-concept. The real existence of this vulnerability is still doubted at the moment. The documentation explains that the parameter -T is experimental and "crashy". Further analysis has shown "the race is not a real problem unless you use asan". A new warning has been added. The vulnerability scanner Nessus provides a plugin with the ID 275939 (TencentOS Server 4: radare2 (TSSA-2025:0547)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 5705d99cc1f23f36f9a84aab26d1724010b97798 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the databases at Tenable (275939) and EUVD (EUVD-2025-16971). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 2.5
VulDB Meta Temp Score: 2.4

VulDB Base Score: 2.5
VulDB Temp Score: 2.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 2.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 275939
Nessus Name: TencentOS Server 4: radare2 (TSSA-2025:0547)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 5705d99cc1f23f36f9a84aab26d1724010b97798

Timelineinfo

06/04/2025 🔍
06/04/2025 +0 days 🔍
11/21/2025 +170 days 🔍

Sourcesinfo

Advisory: 24232
Status: Confirmed
Confirmation: 🔍
Disputed: 🔍

CVE: CVE-2025-5643 (🔍)
GCVE (CVE): GCVE-0-2025-5643
GCVE (VulDB): GCVE-100-311131
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 06/04/2025 14:16
Updated: 11/21/2025 12:56
Changes: 06/04/2025 14:16 (66), 06/04/2025 14:21 (6), 06/05/2025 11:30 (1), 06/23/2025 16:56 (31), 11/21/2025 12:56 (2)
Complete: 🔍
Submitter: rootsec
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #586912: radare2 radiff2 5.9.9 and master branch Memory corruption (by rootsec)

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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