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6.8
CVSSv2

CVE-2021-21843

Published: 18/08/2021 Updated: 29/07/2022
CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6
CVSS v3 Base Score: 8.8 | Impact Score: 5.9 | Exploitability Score: 2.8
VMScore: 605
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
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Vulnerability Summary

Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. After validating the number of ranges, at [41] the library will multiply the count by the size of the GF_SubsegmentRangeInfo structure. On a 32-bit platform, this multiplication can result in an integer overflow causing the space of the array being allocated to be less than expected. An attacker can convince a user to open a video to trigger this vulnerability.

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gpac gpac 1.0.1

debian debian linux 10.0

debian debian linux 11.0

Vendor Advisories

Debian Security Advisories: DSA-4966-1 gpac -- security update
Multiple security issues were discovered in the GPAC multimedia framework which could result in denial of service or the execution of arbitrary code The oldstable distribution (buster) is not affected For the stable distribution (bullseye), these problems have been fixed in version 101+dfsg1-4+deb11u1 We recommend that you upgrade your gpac pa ...
Arch Linux Issues:
Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v101 A specially crafted MPEG-4 input can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption After validating the number o ...

References

CWE-119https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1297https://www.debian.org/security/2021/dsa-4966https://nvd.nist.govhttps://www.debian.org/security/2021/dsa-4966
CVSSv2
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2020-4463CVE-2024-29895injectCVE-2023-52689CVE-2024-5049CVE-2024-5051privilege escalationphysicalCVE-2023-52676
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