Mozilla Foundation Security Advisory 2023-07
Security Vulnerabilities fixed in Thunderbird 102.8
- Announced
- February 15, 2023
- Impact
- low
- Products
- Thunderbird
- Fixed in
-
- Thunderbird 102.8
Except for CVE-2023--0616, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts.
#CVE-2023-0616: User Interface lockup with messages combining S/MIME and OpenPGP
- Reporter
- Kai Engert
- Impact
- low
Description
If a MIME email combines OpenPGP and OpenPGP MIME data in a certain way Thunderbird repeatedly attempts to process and display the message, which could cause Thunderbird's user interface to lock up and no longer respond to the user's actions. An attacker could send a crafted message with this structure to attempt a DoS attack.
References
#CVE-2023-25728: Content security policy leak in violation reports using iframes
- Reporter
- Johan Carlsson
- Impact
- high
Description
The Content-Security-Policy-Report-Only header could allow an attacker to leak a child iframe's unredacted URI when interaction with that iframe triggers a redirect.
References
#CVE-2023-25730: Screen hijack via browser fullscreen mode
- Reporter
- Irvan Kurniawan
- Impact
- high
Description
A background script invoking requestFullscreen and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks.
References
#CVE-2023-0767: Arbitrary memory write via PKCS 12 in NSS
- Reporter
- Christian Holler
- Impact
- high
Description
An attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory writes via PKCS 12 Safe Bag attributes being mishandled.
References
#CVE-2023-25735: Potential use-after-free from compartment mismatch in SpiderMonkey
- Reporter
- Samuel Groß
- Impact
- high
Description
Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free after unwrapping the proxy.
References
#CVE-2023-25737: Invalid downcast in SVGUtils::SetupStrokeGeometry
- Reporter
- Lukas Bernhard
- Impact
- high
Description
An invalid downcast from nsTextNode to SVGElement could have lead to undefined behavior.
References
#CVE-2023-25738: Printing on Windows could potentially crash Thunderbird with some device drivers
- Reporter
- Mark
- Impact
- high
Description
Members of the DEVMODEW struct set by the printer device driver weren't being validated and could have resulted in invalid values which in turn would cause the browser to attempt out of bounds access to related variables.
This bug only affects Thunderbird on Windows. Other operating systems are unaffected.
References
#CVE-2023-25739: Use-after-free in mozilla::dom::ScriptLoadContext::~ScriptLoadContext
- Reporter
- Holger Fuhrmannek
- Impact
- high
Description
Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in ScriptLoadContext.
References
#CVE-2023-25729: Extensions could have opened external schemes without user knowledge
- Reporter
- Vitor Torres
- Impact
- moderate
Description
Permission prompts for opening external schemes were only shown for ContentPrincipals resulting in extensions being able to open them without user interaction via ExpandedPrincipals. This could lead to further malicious actions such as downloading files or interacting with software already installed on the system.
References
#CVE-2023-25732: Out of bounds memory write from EncodeInputStream
- Reporter
- Ronald Crane
- Impact
- moderate
Description
When encoding data from an inputStream in xpcom the size of the input being encoded was not correctly calculated potentially leading to an out of bounds memory write.
References
#CVE-2023-25734: Opening local .url files could cause unexpected network loads
- Reporter
- Ameen Basha M K and Shaheen Fazim
- Impact
- moderate
Description
After downloading a Windows .url shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.
This bug only affects Thunderbird on Windows. Other operating systems are unaffected.
References
#CVE-2023-25742: Web Crypto ImportKey crashes tab
- Reporter
- Goras Francesco
- Impact
- low
Description
When importing a SPKI RSA public key as ECDSA P-256, the key would be handled incorrectly causing the tab to crash.
References
#CVE-2023-25746: Memory safety bugs fixed in Thunderbird 102.8
- Reporter
- Mozilla developers and community
- Impact
- high
Description
Mozilla developers Philipp and Gabriele Svelto reported memory safety bugs present in Thunderbird 102.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.