Heap out-of-bounds read in busybox (Alpine package)



| Updated: 2023-03-07
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-7636
CWE-ID CWE-125
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 busybox (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Heap out-of-bounds read

EUVDB-ID: #VU17683

Risk: Low

CVSSv4.0: 5.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-7636

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to heap-based buffer over-read condition in the SDL_GetRGB function. A remote attacker can trick the victim into accessing a crafted image file and perform a denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

busybox (Alpine package): 1.31.1-r16 - 1.31.1-r21

busybox (Alpine package):

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=76077dfdd8d77220a469c5743b7b7fd3484300a1


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. However, proof of concept for this vulnerability is available.



###SIDEBAR###