Heap-based buffer overflow in faad2 (Alpine package)



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-19502
CWE-ID CWE-122
Exploitation vector Local
Public exploit N/A
Vulnerable software
 faad2 (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU33377

Risk: Medium

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2018-19502

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the function excluded_channels() in libfaad/syntax.c. A remote attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

faad2 (Alpine package): 2.7-r7 - 2.8.8-r0

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=345e3811719177be2d2edbf507a394cf92cfccb6
https://git.alpinelinux.org/aports/commit/?id=3a9fa508128d243abee97ef41bd84a7847515f61
https://git.alpinelinux.org/aports/commit/?id=e84bc7cecdbbd1563791416fd42384b047dc8c52
https://git.alpinelinux.org/aports/commit/?id=fc0275095ee7d946a66d1f1e4713a943ccc05b78
https://git.alpinelinux.org/aports/commit/?id=3f110aff54a0ff10332ae53c70a0fdc4fbd9f4ec


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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



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