CVE-2020-26972
published 2021-01-07CVE-2020-26972: The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor…
PriorityP346critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
1.29%
66.8th percentile
The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 84.0-1 (sid) | firefox 84.0-1 (sid) |
| mozilla | firefox | < 84.0 | 84.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 84.0+build3-0ubuntu0.16.04.1 | 84.0+build3-0ubuntu0.16.04.1 |
| mozilla | firefox | >= 0 < 84.0+build3-0ubuntu0.18.04.1 | 84.0+build3-0ubuntu0.18.04.1 |
| mozilla | firefox | >= 0 < 84.0+build3-0ubuntu0.20.04.1 | 84.0+build3-0ubuntu0.20.04.1 |
| mozilla | firefox | >= unspecified < 84 | 84 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_ubuntu6.5MEDIUM
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Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2020-12-15·CVSS 6.5
CVE-2020-26971 [MEDIUM] Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Firefox could be made to crash or run programs as your login if it
opened a malicious website.
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information, bypass the CSS sanitizer, bypass security restrictions,
spoof the URL bar, or execute arbitrary code. (CVE-2020-16042,
CVE-2020-26971, CVE-2020-26972, CVE-2020-26793, CVE-2020-26974,
CVE-2020-26976, CVE-2020-26978, CVE-2020-26979,
CVE-2020-35113, CVE-2020-35114)
It was discovered that the proxy.onRequest API did not catch
view-source URLs. If a user were tricked in to installing an
extension with the proxy permission and opening View So
Debian
CVE-2020-26972: firefox - The lifecycle of IPC Actors allows managed actors to outlive their manager actor...
vendor_debian·2020·CVSS 9.8
CVE-2020-26972 [CRITICAL] CVE-2020-26972: firefox - The lifecycle of IPC Actors allows managed actors to outlive their manager actor...
The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.
Scope: local
sid: resolved (fixed in 84.0-1)
Mozilla
Mozilla Foundation Security Advisory 2020-54: CVE-2020-26972
vendor_mozilla·CVSS 9.8
CVE-2020-26972 [CRITICAL] Mozilla Foundation Security Advisory 2020-54: CVE-2020-26972
Mozilla Foundation Security Advisory 2020-54
CVE: CVE-2020-26972
Product: Firefox
Impact: high
Fixed in: Firefox 84
GHSA
GHSA-46vq-m3cv-fvrh: The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a de
ghsa_unreviewed·2022-05-24
CVE-2020-26972 [CRITICAL] CWE-416 GHSA-46vq-m3cv-fvrh: The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a de
The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.
OSV
CVE-2020-26972: The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a de
osv·2020-12-15·CVSS 9.8
CVE-2020-26972 [CRITICAL] CVE-2020-26972: The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a de
The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.
OSV
firefox vulnerabilities
osv·2020-12-15·CVSS 6.5
CVE-2020-16042 [MEDIUM] firefox vulnerabilities
firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information, bypass the CSS sanitizer, bypass security restrictions,
spoof the URL bar, or execute arbitrary code. (CVE-2020-16042,
CVE-2020-26971, CVE-2020-26972, CVE-2020-26793, CVE-2020-26974,
CVE-2020-26976, CVE-2020-26978, CVE-2020-26979,
CVE-2020-35113, CVE-2020-35114)
It was discovered that the proxy.onRequest API did not catch
view-source URLs. If a user were tricked in to installing an
extension with the proxy permission and opening View Source, an
attacker could potentially exploit this to obtain sensitive
information. (CVE-2020-35111)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-01-07
Published