#VU34598 Use-after-free in GPAC - CVE-2020-11558


| Updated: 2020-08-08

Vulnerability identifier: #VU34598

Vulnerability 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-2020-11558

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GPAC
Client/Desktop applications / Multimedia software

Vendor: GPAC

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

An issue was discovered in libgpac.a in GPAC 0.8.0, as demonstrated by MP4Box. audio_sample_entry_Read in isomedia/box_code_base.c does not properly decide when to make gf_isom_box_del calls. This leads to various use-after-free outcomes involving mdia_Read, gf_isom_delete_movie, and gf_isom_parse_movie_boxes.

Mitigation
Install update from vendor's website.

Vulnerable software versions

GPAC: 0.8.0

External links
https://github.com/gpac/gpac/commit/6063b1a011c3f80cee25daade18154e15e4c058c
https://github.com/gpac/gpac/issues/1440

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.


Latest bulletins with this vulnerability


Use-after-free in GPAC