Vulnerability · Published Jun 5, 2025 · Assigned by VulDB
CVE-2025-5647Radare2 radiff2 cons.c r_cons_context_break_pop memory corruption
Low 2.5
In plain English
A low-severity memory corruption in Radare2. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Official description
A vulnerability was found in Radare2 5.9.9 and classified as problematic. This issue affects the function r_cons_context_break_pop in the library /libr/cons/cons.c of the component radiff2. The manipulation of the argument -T leads to memory corruption. The attack needs to be approached locally. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The patch is named 5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to apply a patch to fix this issue. 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:25.10 | radare2 | no fix listed | UBUNTU-CVE-2025-5647 |
| Ubuntu:26.04:LTS | radare2 | no fix listed | UBUNTU-CVE-2025-5647 |
| Ubuntu:26.10 | radare2 | no fix listed | UBUNTU-CVE-2025-5647 |
Affected products (as reported)
Weakness: CWE-119 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
References
- VDB-311135 | Radare2 radiff2 cons.c r_cons_context_break_pop memory corruption vdb-entry, technical-description
- VDB-311135 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #586928 | radare2 radiff2 5.9.9 and master branch Memory corruption third-party-advisory
- https://github.com/radareorg/radare2/issues/24237 issue-tracking
- https://github.com/radareorg/radare2/issues/24237#issuecomment-2918846137 issue-tracking
- https://drive.google.com/file/d/16ApwSAKLDqm1qzJLe-uUZSCyy8HNG965/view?usp=sharing exploit
- https://github.com/radareorg/radare2/commit/5705d99cc1f23f36f9a84aab26d1724010b97798 patch