CVE-2021-21843
published 2021-08-18CVE-2021-21843: Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A…
PriorityP347high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
2.02%
78.7th percentile
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.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | gpac | < gpac 1.0.1+dfsg1-4+deb11u1 (bullseye) | gpac 1.0.1+dfsg1-4+deb11u1 (bullseye) |
| gpac | gpac | — | — |
| gpac | gpac | — | — |
| gpac | gpac | >= 0 < 1.0.1+dfsg1-4+deb11u1 | 1.0.1+dfsg1-4+deb11u1 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-pw64-2jph-ghqf: Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v
ghsa_unreviewed·2022-05-24
CVE-2021-21843 [HIGH] CWE-119 GHSA-pw64-2jph-ghqf: Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v
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.
OSV
CVE-2021-21843: Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v
osv·2021-08-18·CVSS 8.8
CVE-2021-21843 [HIGH] CVE-2021-21843: Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v
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.
Debian
CVE-2021-21843: gpac - Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 de...
vendor_debian·2021·CVSS 8.8
CVE-2021-21843 [HIGH] CVE-2021-21843: gpac - Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 de...
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.
Scope: local
bullseye: resolved (fixed in 1.0.1+dfsg1-4+deb11u1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297https://www.debian.org/security/2021/dsa-4966https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1297https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297https://www.debian.org/security/2021/dsa-4966https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1297
2021-08-18
Published