medium 4.7

CVE-2024-6601 json

Race condition in permission assignment

published 2024-07-09 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-47996

cvss: 4.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits: 0; none known

A race condition could lead to a cross-origin container obtaining permissions of the top-level origin. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.

Patch / fix

fixed in 3 distros 7

Mozilla Firefox 128
Mozilla Firefox ESR 115.13
Mozilla Thunderbird 115.13, 128

debian ubuntu red hat suse opensuse almalinux rocky linux

firefox-esr Debian 12 115.13.0esr-1~deb12u1
firefox-esr Debian 14, Debian 13 115.13.0esr-1
thunderbird Debian 12 1:115.13.0-1~deb12u1
thunderbird Debian 14, Debian 13 1:115.13.0-1

debian advisories DEBIAN-CVE-2024-6601

firefox Ubuntu 20.04 LTS 128.0+build2-0ubuntu0.20.04.1
thunderbird Ubuntu 20.04 LTS 1:115.13.0+build5-0ubuntu0.20.04.1
thunderbird Ubuntu 22.04 LTS 1:115.13.0+build5-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2024-6601

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 9 115.13.0-3.el9_4
firefox RHEL 8 115.13.0-3.el8_10
firefox RHEL 9 115.13.0-3.el9_4
firefox-x11 RHEL 9 115.13.0-3.el9_4
thunderbird RHEL 8 115.13.0-3.el8_10
thunderbird RHEL 8.6 TUS, RHEL 8.6 E4S, RHEL 8.6 AUS 115.13.0-3.el8_6
thunderbird RHEL 8.8 EUS 115.13.0-3.el8_8
thunderbird RHEL 8.2 AUS 115.13.0-3.el8_2

red hat advisories RHSA-2024:4894 RHSA-2024:4718 RHSA-2024:4717 RHSA-2024:4670 RHSA-2024:4671 RHSA-2024:4625

MozillaThunderbird SLE Workstation Extension 15 SP6, SLE Workstation Extension 15 SP5, SLE Module for Package Hub 15 SP6 +3 more 128.2.3-150200.8.177.1
MozillaFirefox SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +12 more 128.1.0-150200.152.146.1
MozillaFirefox-branding-SLE SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +12 more 128-150200.9.16.1
MozillaFirefox SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 128.1.0-112.221.1
MozillaFirefox-branding-SLE SLES for SAP 12 SP5, SLES 12 SP5 128-35.15.1
MozillaThunderbird SLE Workstation Extension 15 SP6, SLE Workstation Extension 15 SP5, SLE Module for Package Hub 15 SP6 +3 more 115.13.0-150200.8.171.4
MozillaFirefox SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES for SAP 15 SP2 +12 more 115.13.0-150200.152.143.1
MozillaFirefox SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 115.13.0-112.218.1

suse advisories SUSE-SU-2024:3507-1 SUSE-SU-2024:3003-1 SUSE-SU-2024:2876-1 SUSE-SU-2024:2790-1 SUSE-SU-2024:2399-1 SUSE-SU-2024:2371-1

firefox-esr openSUSE Tumbleweed 128.5.1-1.1
MozillaFirefox openSUSE Tumbleweed 128.0-1.1
MozillaThunderbird openSUSE Tumbleweed 115.13.0-1.1

opensuse advisories openSUSE-SU-2024:14572-1 openSUSE-SU-2024:14197-1 openSUSE-SU-2024:14189-1

thunderbird AlmaLinux 9 115.13.0-3.el9_4.alma.1
thunderbird AlmaLinux 8 115.13.0-3.el8_10.alma.1
firefox AlmaLinux 9 115.13.0-3.el9_4.alma.1
firefox-x11 AlmaLinux 9 115.13.0-3.el9_4.alma.1
firefox AlmaLinux 8 115.13.0-3.el8_10.alma.1

almalinux advisories ALSA-2024:4624 ALSA-2024:4635 ALSA-2024:4500 ALSA-2024:4517

firefox Rocky Linux 8 115.13.0-3.el8_10
thunderbird Rocky Linux 9 115.13.0-3.el9_4
thunderbird Rocky Linux 8 115.13.0-3.el8_10
firefox Rocky Linux 9 115.13.0-3.el9_4

rocky linux advisories RLSA-2024:4517 RLSA-2024:4624 RLSA-2024:4635 RLSA-2024:4500

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-2024-6601 updated 2026-11-08 cvss 6.1

Mozilla: Race condition in permission assignment

Red Hat Enterprise Linux 6 firefox, thunderbird
affected: no fix planned “Out of support scope”
Red Hat Enterprise Linux AppStream (v. 8) firefox 115.13.0-3.el8_10, thunderbird 115.13.0-3.el8_10
fixed: vendor fix RHSA-2024:4517
Red Hat Enterprise Linux AppStream (v. 9) firefox 115.13.0-3.el9_4, firefox-x11 115.13.0-3.el9_4, thunderbird 115.13.0-3.el9_4
fixed: vendor fix RHSA-2024:4500
Red Hat Enterprise Linux AppStream AUS (v. 8.2) firefox 115.13.0-3.el8_2, thunderbird 115.13.0-3.el8_2
fixed: vendor fix RHSA-2024:4586
Red Hat Enterprise Linux AppStream AUS (v.8.4) firefox 115.13.0-3.el8_4, thunderbird 115.13.0-3.el8_4
fixed: vendor fix RHSA-2024:4610
Red Hat Enterprise Linux AppStream AUS (v.8.6) firefox 115.13.0-3.el8_6, thunderbird 115.13.0-3.el8_6
fixed: vendor fix RHSA-2024:4634
Red Hat Enterprise Linux AppStream E4S (v.8.4) firefox 115.13.0-3.el8_4, thunderbird 115.13.0-3.el8_4
fixed: vendor fix RHSA-2024:4610
Red Hat Enterprise Linux AppStream E4S (v.8.6) firefox 115.13.0-3.el8_6, thunderbird 115.13.0-3.el8_6
fixed: vendor fix RHSA-2024:4634

show 6 more

Red Hat Enterprise Linux AppStream E4S (v.9.0) firefox 115.13.0-3.el9_0, thunderbird 115.13.0-3.el9_0
fixed: vendor fix RHSA-2024:4501
Red Hat Enterprise Linux AppStream EUS (v.8.8) firefox 115.13.0-3.el8_8, thunderbird 115.13.0-3.el8_8
fixed: vendor fix RHSA-2024:4590
Red Hat Enterprise Linux AppStream EUS (v.9.2) firefox 115.13.0-3.el9_2, firefox-x11 115.13.0-3.el9_2, thunderbird 115.13.0-3.el9_2
fixed: vendor fix RHSA-2024:4673
Red Hat Enterprise Linux AppStream TUS (v.8.4) firefox 115.13.0-3.el8_4, thunderbird 115.13.0-3.el8_4
fixed: vendor fix RHSA-2024:4610
Red Hat Enterprise Linux AppStream TUS (v.8.6) firefox 115.13.0-3.el8_6, thunderbird 115.13.0-3.el8_6
fixed: vendor fix RHSA-2024:4634
Red Hat Enterprise Linux Server (v. 7 ELS) firefox 115.13.0-3.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) firefox 115.13.0-3.el7_9
fixed: vendor fix RHSA-2024:4508

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: no
Technical impact: partial
Assessed: 2 y ago (2024-07-23)

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	4.7	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CNA	3.1	4.7	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L

Affected products

Mozilla Firefox
Mozilla Firefox ESR
Mozilla Thunderbird

Classification

Weakness

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

References

mozilla.org /security/advisories/mfsa2024-29/
vendor-advisory
mozilla.org /security/advisories/mfsa2024-30/
vendor-advisory
mozilla.org /security/advisories/mfsa2024-31/
vendor-advisory
mozilla.org /security/advisories/mfsa2024-32/
vendor-advisory
bugzilla.mozilla.org /show_bug.cgi?id=1890748
issue-tracking

Sources

CVE List CVE-2024-6601
NVD CVE-2024-6601

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary