Buffer overflow in radare2 (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU32996

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-12829

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

radare2 through 3.5.1 mishandles the RParse API, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact, as demonstrated by newstr buffer overflows during replace operations. This affects libr/asm/asm.c and libr/parse/parse.c.

Mitigation

Install update from vendor's website.

Vulnerable software versions

radare2 (Alpine package): 3.5.0-r0 - 3.5.0-r1

CPE2.3

• cpe:2.3:a:alpine:radare2_alpine_package:3.5.0-r0:*:*:*:*:alpine_linux:*:3.10
• cpe:2.3:a:alpine:radare2_alpine_package:3.5.0-r1:*:*:*:*:alpine_linux:*:3.10

External links

https://git.alpinelinux.org/aports/commit/?id=dcf6ac0dd602ae862f74f0899531fd1cbf6c905f
https://git.alpinelinux.org/aports/commit/?id=11ebb645d709001687b866a6a60a71b566476c2a

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.