Red Hat Security AdvisoryRHSA-2025:13646
thunderbird security update
Released 2025-08-11 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream AUS (v.8.4) thunderbird-128.13.0-3.el8_4
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) thunderbird-128.13.0-3.el8_4
Fixes 9 records
Priority MEDIUM 50
On arm64, a WASM `br_table` instruction with a lot of entries could lead to the label being too far from the instruction causing truncation and incorrect computation of the branch address.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.0058 · Published 2025-07-22 · Partial fix · 115.26, 128.13 +2 CWE-1332
Priority MEDIUM 49
The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials.
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00511 · Published 2025-07-22 · Partial fix · 128.13, 140.1 +1 CWE-276
Priority MEDIUM 40
Memory safety bugs present in Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140.
CVSS 3.1HIGH 8.8· Network · No auth · User interaction · EPSS 0.00401 · Published 2025-07-22 · Partial fix · 128.13, 140.1 +1 CWE-119
Priority MEDIUM 40
Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140.
CVSS 3.1HIGH 8.8· Network · No auth · User interaction · EPSS 0.00461 · Published 2025-07-22 · Partial fix · 115.26, 128.13 +2 CWE-119
Priority LOW 37
XSLT document loading did not correctly propagate the source document which bypassed its CSP.
CVSS 3.1HIGH 8.1· Network · No auth · User interaction · EPSS 0.00375 · Published 2025-07-22 · Partial fix · 128.13, 140.1 +1 CWE-693
Priority LOW 37
Insufficient escaping in the “Copy as cURL” feature could potentially be used to trick a user into executing unexpected code.
CVSS 3.1HIGH 8.1· Network · No auth · User interaction · EPSS 0.00376 · Published 2025-07-22 · Partial fix · 128.13, 140.1 +1 CWE-94
Priority LOW 37
Thunderbird executed `javascript:` URLs when used in `object` and `embed` tags.
CVSS 3.1HIGH 8.1· Network · No auth · User interaction · EPSS 0.00376 · Published 2025-07-22 · Partial fix · 128.13, 140.1 +1 CWE-80
Priority LOW 29
The JavaScript engine did not handle closed generators correctly and it was possible to resume them leading to a nullptr deref.
CVSS 3.1MEDIUM 6.5· Network · No auth · User interaction · EPSS 0.00432 · Published 2025-07-22 · Partial fix · 115.26, 128.13 +2 CWE-476
Priority LOW 29
On 64-bit platforms IonMonkey-JIT only wrote 32 bits of the 64-bit return value space on the stack.
CVSS 3.1MEDIUM 6.5· Network · No auth · User interaction · EPSS 0.00432 · Published 2025-07-22 · Partial fix · 115.26, 128.13 +2 CWE-457
THREATIST.IORead the docs