Description
Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service.
*Note: This attack only affects Windows. Other operating systems are not affected.* This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mozilla | Firefox | unspecified – < 113 | 113 |
| Mozilla | Firefox ESR | unspecified – < 102.11 | 102.11 |
| Mozilla | Thunderbird | unspecified – < 102.11 | 102.11 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SLES 15 SP4 | MozillaThunderbird | 102.11.0-150200.8.116.1 | SUSE-SU-2023:2211-1 |
| SLES 15 SP3 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SLES 15 SP2 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SLES 15 SP1 | MozillaFirefox | 102.11.0-150000.150.85.1 | SUSE-SU-2023:2175-1 |
| SLES 12 SP5 | MozillaFirefox | 102.11.0-112.159.1 | SUSE-SU-2023:2176-1 |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | MozillaFirefox | 102.11.0-112.159.1 | SUSE-SU-2023:2176-1 |
| SLES 12 SP2 | MozillaFirefox | 102.11.0-112.159.1 | SUSE-SU-2023:2176-1 |
| SLES for SAP 15 SP3 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SLES for SAP 15 SP2 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SLES for SAP 15 SP1 | MozillaFirefox | 102.11.0-150000.150.85.1 | SUSE-SU-2023:2175-1 |
| SLES for SAP 12 SP5 | MozillaFirefox | 102.11.0-112.159.1 | SUSE-SU-2023:2176-1 |
| SLES for SAP 12 SP4 | MozillaFirefox | 102.11.0-112.159.1 | SUSE-SU-2023:2176-1 |
| SLE Real Time 15 SP3 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SLE HPC 15 SP3 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SLE HPC 15 SP2 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SLE HPC 15 SP1 | MozillaFirefox | 102.11.0-150000.150.85.1 | SUSE-SU-2023:2175-1 |
| SUSE OpenStack Cloud Crowbar 9 | MozillaFirefox | 102.11.0-112.159.1 | SUSE-SU-2023:2176-1 |
| SUSE OpenStack Cloud 9 | MozillaFirefox | 102.11.0-112.159.1 | SUSE-SU-2023:2176-1 |
| SUSE Enterprise Storage 7.1 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| SUSE Enterprise Storage 7 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | MozillaFirefox | 113.0-1.1 | openSUSE-SU-2024:12920-1 |
| openSUSE Tumbleweed | MozillaThunderbird | 102.11.0-1.1 | openSUSE-SU-2024:12921-1 |
| openSUSE Tumbleweed | firefox-esr | 128.5.1-1.1 | openSUSE-SU-2024:14572-1 |
| openSUSE Leap 15.4 | MozillaFirefox | 102.11.0-150200.152.87.1 | SUSE-SU-2023:2173-1 |
| openSUSE Leap 15.4 | MozillaThunderbird | 102.11.0-150200.8.116.1 | SUSE-SU-2023:2211-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.23 | firefox-esr | 102.11.0-r0 | — |
| Alpine v3.22 | firefox-esr | 102.11.0-r0 | — |
| Alpine v3.21 | firefox-esr | 102.11.0-r0 | — |
| Alpine v3.20 | firefox-esr | 102.11.0-r0 | — |
| Alpine v3.19 | firefox-esr | 102.11.0-r0 | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.18 | firefox-esr | 102.11.0-r0 | — |
Advisories 10
- WID-SEC-2023-2031 Xerox FreeFlow Print Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 11, 2026
- SUSE-SU-2023:2173-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2175-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12920-1 MozillaFirefox-113.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2211-1 Security update for MozillaThunderbird SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:2176-1 Security update for MozillaFirefox SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:12921-1 MozillaThunderbird-102.11.0-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14572-1 firefox-esr-128.5.1-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1172 Mozilla Firefox und Mozilla Firefox ESR: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 7, 2024
- WID-SEC-2023-1201 Mozilla Thunderbird: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 20, 2023
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1828716
- https://security.gentoo.org/glsa/202312-03
- https://security.gentoo.org/glsa/202401-10
- https://www.mozilla.org/security/advisories/mfsa2023-16/
- https://www.mozilla.org/security/advisories/mfsa2023-17/
- https://www.mozilla.org/security/advisories/mfsa2023-18/