Vulnerability Details : CVE-2021-21859
Potential exploit
An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. The stri_box_read function is used when processing atoms using the 'stri' FOURCC code. An attacker can convince a user to open a video to trigger this vulnerability.
Vulnerability category: Overflow
Products affected by CVE-2021-21859
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21859
0.41%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21859
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
Talos | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2021-21859
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
-
The product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, leading to a buffer overflow.Assigned by: talos-cna@cisco.com (Secondary)
References for CVE-2021-21859
-
https://www.debian.org/security/2021/dsa-4966
Debian -- Security Information -- DSA-4966-1 gpacThird Party Advisory
-
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1298
TALOS-2021-1298 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
Jump to