CVE Vulnerabilities

CVE-2017-7946

Use After Free

Published: Apr 18, 2017 | Modified: Apr 20, 2025
CVSS 3.x
5.5
MEDIUM
Source:
NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

The get_relocs_64 function in libr/bin/format/mach0/mach0.c in radare2 1.3.0 allows remote attackers to cause a denial of service (use-after-free and application crash) via a crafted Mach0 file.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

Name Vendor Start Version End Version
Radare2 Radare 1.3.0 (including) 1.3.0 (including)
Radare2 Ubuntu artful *
Radare2 Ubuntu esm-apps/xenial *
Radare2 Ubuntu precise *
Radare2 Ubuntu trusty *
Radare2 Ubuntu upstream *
Radare2 Ubuntu xenial *
Radare2 Ubuntu yakkety *
Radare2 Ubuntu zesty *

Potential Mitigations

References