cbcvebase.
CVE-2021-3497
published 2021-04-19

CVE-2021-3497: GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.

PriorityP337high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
1.22%
65.2th percentile
GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.

Affected

6 ranges
VendorProductVersion rangeFixed in
debiandebian_linux
debiandebian_linux
debiangst-plugins-good1.0< gst-plugins-good1.0 1.18.4-2 (bookworm)gst-plugins-good1.0 1.18.4-2 (bookworm)
gstreamergstreamer>= 0.10.0 < 1.18.41.18.4
redhatenterprise_linux
redhatenterprise_linux

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/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
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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.