CVE-2023-4050 in the critical feed json
In some cases, an untrusted input stream was copied to a stack buffer without checking its size.
published 2023-08-01 3 y ago modified 2026-10-23 16 d ago also EUVD-2023-53941
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 12.6%
- EPSS 12.6% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Patch / fix
- Mozilla Firefox 116
- Mozilla Firefox ESR 102.14, 115.1
- mozilla firefox_esr 102.14, 115.1
- firefox-esr Debian 12 102.14.0esr-1~deb12u1
- firefox-esr Debian 14, Debian 13 115.1.0esr-1
- thunderbird Debian 12 1:102.14.0-1~deb12u1
- thunderbird Debian 14, Debian 13 1:115.1.0-1
debian advisories DEBIAN-CVE-2023-4050
- firefox Ubuntu 20.04 LTS 116.0+build2-0ubuntu0.20.04.2
- thunderbird Ubuntu 20.04 LTS 1:102.15.0+build1-0ubuntu0.20.04.1
- thunderbird Ubuntu 22.04 LTS 1:102.15.0+build1-0ubuntu0.22.04.1
ubuntu advisories UBUNTU-CVE-2023-4050
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- thunderbird RHEL 7 102.14.0-1.el7_9
- thunderbird RHEL 9 102.14.0-1.el9_2
- thunderbird RHEL 8 102.14.0-1.el8_8
- firefox RHEL 7 102.14.0-1.el7_9
- firefox RHEL 8 102.14.0-1.el8_8
- firefox RHEL 9 102.14.0-1.el9_2
- firefox-x11 RHEL 9 102.14.0-1.el9_2
- thunderbird RHEL 8.2 TUS, RHEL 8.2 E4S, RHEL 8.2 AUS 102.14.0-1.el8_2
red hat advisories RHSA-2023:4496RHSA-2023:4500RHSA-2023:4495RHSA-2023:4499RHSA-2023:4494RHSA-2023:4493
- MozillaThunderbird SLE Workstation Extension 15 SP5, SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP5 +3 more 115.1.0-150200.8.127.1
- MozillaFirefox SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +9 more 115.1.0-150200.152.99.1
- MozillaFirefox SLES for SAP 12 SP5, SLES 12 SP5, SLES 12 SP2-BCL +1 more 115.1.0-112.173.1
- MozillaFirefox SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS 115.1.0-150000.150.97.1
suse advisories SUSE-SU-2023:3228-1SUSE-SU-2023:3163-1SUSE-SU-2023:3162-1SUSE-SU-2023:3161-1
- firefox-esr openSUSE Tumbleweed 128.5.1-1.1
- MozillaThunderbird openSUSE Tumbleweed 102.14.0-1.1
- MozillaFirefox openSUSE Tumbleweed 116.0.2-1.1
opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:13091-1openSUSE-SU-2024:13124-1
- thunderbird AlmaLinux 8 102.14.0-1.el8_8.alma
- thunderbird AlmaLinux 9 102.14.0-1.el9_2.alma
- firefox AlmaLinux 9 102.14.0-1.el9_2.alma
- firefox-x11 AlmaLinux 9 102.14.0-1.el9_2.alma
- firefox AlmaLinux 8 102.14.0-1.el8_8.alma
almalinux advisories ALSA-2023:4497ALSA-2023:4499ALSA-2023:4462ALSA-2023:4468
- firefox Rocky Linux 9 102.14.0-1.el9_2
- thunderbird Rocky Linux 9 102.14.0-1.el9_2
- thunderbird Rocky Linux 8 102.14.0-1.el8_8
- firefox Rocky Linux 8 102.14.0-1.el8_8
rocky linux advisories RLSA-2023:4462RLSA-2023:4499RLSA-2023:4497RLSA-2023:4468
- firefox-esr Alpine 3.23, Alpine 3.22, Alpine 3.21 +3 more 115.1.0-r0
alpine advisories ALPINE-CVE-2023-4050
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2023-4050 updated cvss 7.5
Mozilla: Stack buffer overflow in StorageManager
-
Red Hat Enterprise Linux 6 firefox, thunderbirdaffected: no fix planned “Out of support scope”
-
Red Hat Enterprise Linux AppStream (v. 8) firefox 102.14.0-1.el8_8, thunderbird 102.14.0-1.el8_8fixed: vendor fix RHSA-2023:4468
-
Red Hat Enterprise Linux AppStream (v. 9) firefox 102.14.0-1.el9_2, firefox-x11 102.14.0-1.el9_2, thunderbird 102.14.0-1.el9_2fixed: vendor fix RHSA-2023:4462
-
Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox 102.14.0-1.el8_2, thunderbird 102.14.0-1.el8_2fixed: vendor fix RHSA-2023:4460
-
Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox 102.14.0-1.el8_4, thunderbird 102.14.0-1.el8_4fixed: vendor fix RHSA-2023:4469
-
Red Hat Enterprise Linux AppStream E4S (v. 8.1) firefox 102.14.0-1.el8_1, thunderbird 102.14.0-1.el8_1fixed: vendor fix RHSA-2023:4464
-
Red Hat Enterprise Linux AppStream E4S (v. 8.2) firefox 102.14.0-1.el8_2, thunderbird 102.14.0-1.el8_2fixed: vendor fix RHSA-2023:4460
-
Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox 102.14.0-1.el8_4, thunderbird 102.14.0-1.el8_4fixed: vendor fix RHSA-2023:4469
show 5 moreshow fewer
-
Red Hat Enterprise Linux AppStream EUS (v.8.6) firefox 102.14.0-1.el8_6, thunderbird 102.14.0-1.el8_6fixed: vendor fix RHSA-2023:4463
-
Red Hat Enterprise Linux AppStream EUS (v.9.0) firefox 102.14.0-1.el9_0, thunderbird 102.14.0-1.el9_0fixed: vendor fix RHSA-2023:4465
-
Red Hat Enterprise Linux AppStream TUS (v. 8.2) firefox 102.14.0-1.el8_2, thunderbird 102.14.0-1.el8_2fixed: vendor fix RHSA-2023:4460
-
Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox 102.14.0-1.el8_4, thunderbird 102.14.0-1.el8_4fixed: vendor fix RHSA-2023:4469
-
Red Hat Enterprise Linux Client (v. 7) firefox 102.14.0-1.el7_9, thunderbird 102.14.0-1.el7_9 Red Hat Enterprise Linux Client Optional (v. 7) firefox 102.14.0-1.el7_9 Red Hat Enterprise Linux Server (v. 7) firefox 102.14.0-1.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) firefox 102.14.0-1.el7_9, thunderbird 102.14.0-1.el7_9 Red Hat Enterprise Linux Workstation (v. 7) firefox 102.14.0-1.el7_9, thunderbird 102.14.0-1.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) firefox 102.14.0-1.el7_9fixed: vendor fix RHSA-2023:4461
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
12.58% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Mozilla Firefox
- Mozilla Firefox ESR
- mozilla firefox_esr
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
References
-
mozilla.org
/security/advisories/mfsa2023-29/
vendor-advisory
-
mozilla.org
/security/advisories/mfsa2023-30/
vendor-advisory
-
mozilla.org
/security/advisories/mfsa2023-31/
vendor-advisory
-
bugzilla.mozilla.org
/show_bug.cgi?id=1843038
issue-tracking, permissions-required
-
debian.org
/security/2023/dsa-5464
third-party-advisory
-
debian.org
/security/2023/dsa-5469
third-party-advisory
- lists.debian.org /debian-lts-announce/2023/08/msg00008.html
- lists.debian.org /debian-lts-announce/2023/08/msg00010.html
Sources
- CVE List CVE-2023-4050
- NVD CVE-2023-4050
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.