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THREATINT
PUBLISHED

CVE-2025-5646

Radare2 radiff2 pal.c r_cons_rainbow_free memory corruption



Description

EN DE

A vulnerability has been found in Radare2 5.9.9 and classified as problematic. This vulnerability affects the function r_cons_rainbow_free in the library /libr/cons/pal.c of the component radiff2. The manipulation of the argument -T leads to memory corruption. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears 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 identified as 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.

In Radare2 5.9.9 wurde eine problematische Schwachstelle gefunden. Hierbei betrifft es die Funktion r_cons_rainbow_free in der Bibliothek /libr/cons/pal.c der Komponente radiff2. Durch Beeinflussen des Arguments -T mit unbekannten Daten kann eine memory corruption-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs hat dabei lokal zu erfolgen. Die Komplexität eines Angriffs ist eher hoch. Das Ausnutzen gilt als schwierig. Der Exploit steht zur öffentlichen Verfügung. Zur Zeit ist nicht genau klar, ob diese Schwachstelle in der besagten Form wirklich existiert. Der Patch wird als 5705d99cc1f23f36f9a84aab26d1724010b97798 bezeichnet. Als bestmögliche Massnahme wird Patching empfohlen.

Reserved 2025-06-04 | Published 2025-06-05 | Updated 2025-06-05 | Assigner VulDB


LOW: 2.0CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
LOW: 2.5CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
LOW: 2.5CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
1.0AV:L/AC:H/Au:S/C:N/I:N/A:P

Problem types

Memory Corruption

Timeline

2025-06-04:Advisory disclosed
2025-06-04:VulDB entry created
2025-06-04:VulDB entry last update

Credits

rootsec (VulDB User) reporter

References

vuldb.com/?id.311134 (VDB-311134 | Radare2 radiff2 pal.c r_cons_rainbow_free memory corruption) vdb-entry technical-description

vuldb.com/?ctiid.311134 (VDB-311134 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.586923 (Submit #586923 | radare2 radiff2 5.9.9 and master branch Memory corruption) third-party-advisory

github.com/radareorg/radare2/issues/24235 issue-tracking

github.com/radareorg/radare2/issues/24235 issue-tracking

drive.google.com/...OEgM9Cemb5FBlMJH_J1wux0/view?usp=sharing exploit

github.com/...ommit/5705d99cc1f23f36f9a84aab26d1724010b97798 patch

cve.org (CVE-2025-5646)

nvd.nist.gov (CVE-2025-5646)

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