CVE-2021-21806
published 2021-07-08CVE-2021-21806: An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free…
PriorityP346high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
2.82%
84.9th percentile
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | webkit2gtk | < webkit2gtk 2.30.6-1 (bookworm) | webkit2gtk 2.30.6-1 (bookworm) |
| debian | wpewebkit | < webkit2gtk 2.30.6-1 (bookworm) | webkit2gtk 2.30.6-1 (bookworm) |
| webkitgtk | webkitgtk | — | — |
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
vendor_redhat8.8HIGH
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Red Hat
webkitgtk: Use-after-free in fireEventListeners leading to arbitrary code execution
vendor_redhat·2021-07-08·CVSS 8.8
CVE-2021-21806 [HIGH] CWE-416 webkitgtk: Use-after-free in fireEventListeners leading to arbitrary code execution
webkitgtk: Use-after-free in fireEventListeners leading to arbitrary code execution
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
Package: webkitgtk (Red Hat Enterprise Linux 6) - Out of support scope
Package: webkitgtk3 (Red Hat Enterprise Linux 7) - Out of support scope
Package: webkit2gtk3 (Red Hat Enterprise Linux 9) - Not affected
Debian
CVE-2021-21806: webkit2gtk - An exploitable use-after-free vulnerability exists in WebKitGTK browser version ...
vendor_debian·2021·CVSS 8.8
CVE-2021-21806 [HIGH] CVE-2021-21806: webkit2gtk - An exploitable use-after-free vulnerability exists in WebKitGTK browser version ...
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
Scope: local
bookworm: resolved (fixed in 2.30.6-1)
bullseye: resolved (fixed in 2.30.6-1)
forky: resolved (fixed in 2.30.6-1)
sid: resolved (fixed in 2.30.6-1)
trixie: resolved (fixed in 2.30.6-1)
GHSA
GHSA-x2v5-56r3-vrw9: An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2
ghsa_unreviewed·2022-05-24
CVE-2021-21806 [HIGH] CWE-416 GHSA-x2v5-56r3-vrw9: An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
OSV
CVE-2021-21806: An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2
osv·2021-07-08·CVSS 8.8
CVE-2021-21806 [HIGH] CVE-2021-21806: An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-07-08
Published