CVE-2021-30020 json
In the function gf_hevc_read_pps_bs_internal function in media_tools/av_parsers.c in GPAC 1.0.1 there is a loop, which with crafted file, p…
published 2021-04-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-16964
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
In the function gf_hevc_read_pps_bs_internal function in media_tools/av_parsers.c in GPAC 1.0.1 there is a loop, which with crafted file, pps->num_tile_columns may be larger than sizeof(pps->column_width), which results in a heap overflow in the loop.
Patch / fix
- gpac Debian 11 1.0.1+dfsg1-4
debian advisories DEBIAN-CVE-2021-30020
- github.com/gpac/gpac@51cdb67 commit
Exploit prediction
0.91% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/gpac/gpac/issues/1722 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
github.com
/gpac/gpac/commit/51cdb67ff7c5f1242ac58c5aa603ceaf1793b788
patch, third-party-advisory
-
github.com
/gpac/gpac/issues/1722
exploit, third-party-advisory
Sources
- CVE List CVE-2021-30020
- NVD CVE-2021-30020
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