JIT corruption of WASM i32 return values on 64-bit CPUs
Published Mar 4, 2025
7.6
HIGHCVSS 3.1
EPSS 0.32%
Description
On 64-bit CPUs, when the JIT compiles WASM i32 return values they can pick up bits from left over memory. This can potentially cause them to be treated as a different type. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
Affected products
No data.
- < 115.21.0
- < 136.0
- ≥ 116.0 · < 128.8.0
- < 128.8
- ≥ 129.0 · < 136.0
No data.
Red Hat Enterprise Linux 7 Extended Lifecycle Support
firefox-0:128.8.0-1.el7_9
Fixed · RHSA-2025:2699
Red Hat Enterprise Linux 8
firefox-0:128.8.0-1.el8_10
Fixed · RHSA-2025:2452
Red Hat Enterprise Linux 8.2 Advanced Update Support
firefox-0:128.8.0-1.el8_2
Fixed · RHSA-2025:2708
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
firefox-0:128.8.0-1.el8_4
Fixed · RHSA-2025:2484
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
firefox-0:128.8.0-1.el8_4
Fixed · RHSA-2025:2484
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
firefox-0:128.8.0-1.el8_4
Fixed · RHSA-2025:2484
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
firefox-0:128.8.0-1.el8_6
Fixed · RHSA-2025:2485
Red Hat Enterprise Linux 8.6 Telecommunications Update Service
firefox-0:128.8.0-1.el8_6
Fixed · RHSA-2025:2485
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
firefox-0:128.8.0-1.el8_6
Fixed · RHSA-2025:2485
Red Hat Enterprise Linux 8.8 Extended Update Support
firefox-0:128.8.0-1.el8_8
Fixed · RHSA-2025:2486
Red Hat Enterprise Linux 9
firefox-0:128.8.0-1.el9_5
Fixed · RHSA-2025:2359
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
firefox-0:128.8.0-1.el9_0
Fixed · RHSA-2025:2481
Red Hat Enterprise Linux 9.2 Extended Update Support
firefox-0:128.8.0-1.el9_2
Fixed · RHSA-2025:2480
Red Hat Enterprise Linux 9.4 Extended Update Support
firefox-0:128.8.0-1.el9_4
Fixed · RHSA-2025:2479
Red Hat Enterprise Linux 10
firefox
Affected
Red Hat Enterprise Linux 10
firefox-flatpak-container
Affected
Red Hat Enterprise Linux 6
firefox
Out of support scope
Red Hat Enterprise Linux 9
firefox-flatpak-container
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | firefox-0:128.8.0-1.el7_9 | Fixed | RHSA-2025:2699 |
| Red Hat Enterprise Linux 8 | firefox-0:128.8.0-1.el8_10 | Fixed | RHSA-2025:2452 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | firefox-0:128.8.0-1.el8_2 | Fixed | RHSA-2025:2708 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | firefox-0:128.8.0-1.el8_4 | Fixed | RHSA-2025:2484 |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | firefox-0:128.8.0-1.el8_4 | Fixed | RHSA-2025:2484 |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | firefox-0:128.8.0-1.el8_4 | Fixed | RHSA-2025:2484 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | firefox-0:128.8.0-1.el8_6 | Fixed | RHSA-2025:2485 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | firefox-0:128.8.0-1.el8_6 | Fixed | RHSA-2025:2485 |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | firefox-0:128.8.0-1.el8_6 | Fixed | RHSA-2025:2485 |
| Red Hat Enterprise Linux 8.8 Extended Update Support | firefox-0:128.8.0-1.el8_8 | Fixed | RHSA-2025:2486 |
| Red Hat Enterprise Linux 9 | firefox-0:128.8.0-1.el9_5 | Fixed | RHSA-2025:2359 |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | firefox-0:128.8.0-1.el9_0 | Fixed | RHSA-2025:2481 |
| Red Hat Enterprise Linux 9.2 Extended Update Support | firefox-0:128.8.0-1.el9_2 | Fixed | RHSA-2025:2480 |
| Red Hat Enterprise Linux 9.4 Extended Update Support | firefox-0:128.8.0-1.el9_4 | Fixed | RHSA-2025:2479 |
| Red Hat Enterprise Linux 10 | firefox | Affected | n/a |
| Red Hat Enterprise Linux 10 | firefox-flatpak-container | Affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Out of support scope | n/a |
| Red Hat Enterprise Linux 9 | firefox-flatpak-container | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
References (12)
- https://access.redhat.com/security/cve/CVE-2025-1933 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1946004 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=2349794 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-7438 Advisory
- https://lists.debian.org/debian-lts-announce/2025/03/msg00006.html
- https://nvd.nist.gov/vuln/detail/CVE-2025-1933
- https://www.cve.org/CVERecord?id=CVE-2025-1933
- https://www.mozilla.org/security/advisories/mfsa2025-14/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-15/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-16/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-17/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2025-18/ Vendor Advisory
Change history (0)
No recorded changes yet.