CVE-2019-11756
published 2020-01-08CVE-2019-11756: Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects…
PriorityP338high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
1.50%
71.2th percentile
Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 71.0-1 (sid) | firefox 71.0-1 (sid) |
| mozilla | firefox | < 71.0 | 71.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 0 < 71.0+build5-0ubuntu0.16.04.1 | 71.0+build5-0ubuntu0.16.04.1 |
| mozilla | firefox | >= 0 < 71.0+build5-0ubuntu0.18.04.1 | 71.0+build5-0ubuntu0.18.04.1 |
| mozilla | firefox | >= 0 < 71.0+build5-0ubuntu1 | 71.0+build5-0ubuntu1 |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/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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Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2019-12-13
CVE-2019-11745 Firefox vulnerabilities
Title: Firefox vulnerabilities
Summary: Firefox could be made to crash or run programs as your login if it
opened a malicious website.
USN-4216-1 fixed vulnerabilities in Firefox. This update provides the
corresponding update for Ubuntu 16.04 LTS.
Original advisory details:
Multiple security issues were discovered in Firefox. If a user were
tricked in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information, or execute arbitrary code.
Instructions: After a standard system update you need to restart Firefox to make
all the necessary changes.
Red Hat
nss: Use-after-free in sftk_FreeSession due to improper refcounting
vendor_redhat·2019-12-10·CVSS 8.8
CVE-2019-11756 [HIGH] CWE-416 nss: Use-after-free in sftk_FreeSession due to improper refcounting
nss: Use-after-free in sftk_FreeSession due to improper refcounting
Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.
A use-after-free flaw was found in Mozilla Network Security Services (NSS) related to PK11 session handling. An attacker could use this flaw to execute arbitrary code with the permissions of the user running the application compiled with NSS.
Statement: This flaw was fixed in upstream nss-3.47. Exploitation of this flaw is difficult and even impossible in most cases.
Package: nss (Red Hat Enterprise Linux 5) - Out of support scope
Package: nss (Red Hat Enterprise Linux 6) - Out of support scope
Ubuntu
Firefox vulnerabilities
vendor_ubuntu·2019-12-09
CVE-2019-11745 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 in to opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, obtain sensitive
information, or execute arbitrary code.
Instructions: After a standard system update you need to restart Firefox to make
all the necessary changes.
Debian
CVE-2019-11756: firefox - Improper refcounting of soft token session objects could cause a use-after-free ...
vendor_debian·2019·CVSS 8.8
CVE-2019-11756 [HIGH] CVE-2019-11756: firefox - Improper refcounting of soft token session objects could cause a use-after-free ...
Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.
Scope: local
sid: resolved (fixed in 71.0-1)
GHSA
GHSA-v78f-65qq-96m8: Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service)
ghsa_unreviewed·2022-05-24
CVE-2019-11756 [MEDIUM] GHSA-v78f-65qq-96m8: Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service)
Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.
OSV
CVE-2019-11756: Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service)
osv·2019-12-04·CVSS 8.8
CVE-2019-11756 [HIGH] CVE-2019-11756: Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service)
Improper refcounting of soft token session objects could cause a use-after-free and crash (likely limited to a denial of service). This vulnerability affects Firefox < 71.
No detection rules found.
No public exploits indexed.
2020-01-08
Published