[MFSA-2023-38] Security Vulnerabilities fixed in Thunderbird 115.2

Severity High

Affected Packages 1

Fixed Packages 1

CVEs 14

In general, 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-2023-4051: Full screen notification obscured by file open dialog (moderate)
A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks.
CVE-2023-4053: Full screen notification obscured by external program (moderate)
A website could have obscured the full screen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks.
CVE-2023-4573: Memory corruption in IPC CanvasTranslator (high)
When receiving rendering data over IPC <code>mStream</code> could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash.
CVE-2023-4574: Memory corruption in IPC ColorPickerShownCallback (high)
When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash.
CVE-2023-4575: Memory corruption in IPC FilePickerShownCallback (high)
When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash.
CVE-2023-4576: Integer Overflow in RecordedSourceSurfaceCreation (high)
On Windows, an integer overflow could occur in <code>RecordedSourceSurfaceCreation</code> which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape.
This bug only affects Firefox on Windows. Other operating systems are unaffected.
CVE-2023-4577: Memory corruption in JIT UpdateRegExpStatics (high)
When <code>UpdateRegExpStatics</code> attempted to access <code>initialStringHeap</code> it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash.
CVE-2023-4578: Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception (moderate)
When calling <code>JS::CheckRegExpSyntax</code> a Syntax Error could have been set which would end in calling <code>convertToRuntimeErrorAndClear</code>. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error.
CVE-2023-4580: Push notifications saved to disk unencrypted (moderate)
Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information.
CVE-2023-4581: XLL file extensions were downloadable without warnings (moderate)
Excel <code>.xll</code> add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm.
CVE-2023-4582: Buffer Overflow in WebGL glGetProgramiv (low)
Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occured when allocating too much private shader memory on mac OS.
This bug only affects Firefox on macOS. Other operating systems are unaffected.
CVE-2023-4583: Browsing Context potentially not cleared when closing Private Window (low)
When checking if the Browsing Context had been discarded in <code>HttpBaseChannel</code>, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended.
CVE-2023-4584: Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2 (high)
Memory safety bugs present in Firefox 116, Firefox ESR 102.14, Firefox ESR 115.1, Thunderbird 102.14, and Thunderbird 115.1. 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.
CVE-2023-4585: Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2 (high)
Memory safety bugs present in Firefox 116, Firefox ESR 115.1, and Thunderbird 115.1. 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.

Package	Affected Version
pkg:mozilla/Thunderbird	< 115.2

Package	Fixed Version
pkg:mozilla/Thunderbird	= 115.2

ID

MFSA-2023-38

Severity

high

URL

https://www.mozilla.org/en-US/security/advisories/mfsa2023-38

Published

2023-08-29T00:00:00
(12 months ago)

Modified

2023-08-29T00:00:00
(12 months ago)

Other Advisories

Source	# ID	Name	URL
Bugzilla	1821884		https://bugzilla.mozilla.org/show_bug.cgi?id=1821884
Bugzilla	1839079		https://bugzilla.mozilla.org/show_bug.cgi?id=1839079
Bugzilla	1846687		https://bugzilla.mozilla.org/show_bug.cgi?id=1846687
Bugzilla	1846688		https://bugzilla.mozilla.org/show_bug.cgi?id=1846688
Bugzilla	1846689		https://bugzilla.mozilla.org/show_bug.cgi?id=1846689
Bugzilla	1846694		https://bugzilla.mozilla.org/show_bug.cgi?id=1846694
Bugzilla	1847397		https://bugzilla.mozilla.org/show_bug.cgi?id=1847397
Bugzilla	1839007		https://bugzilla.mozilla.org/show_bug.cgi?id=1839007
Bugzilla	1843046		https://bugzilla.mozilla.org/show_bug.cgi?id=1843046
Bugzilla	1843758		https://bugzilla.mozilla.org/show_bug.cgi?id=1843758
Bugzilla	1773874		https://bugzilla.mozilla.org/show_bug.cgi?id=1773874
Bugzilla	1842030		https://bugzilla.mozilla.org/show_bug.cgi?id=1842030
Bugzilla	1843968	Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1843968
Bugzilla	1845205	Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1845205
Bugzilla	1846080	Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1846080
Bugzilla	1846526	Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1846526
Bugzilla	1847529	Memory safety bugs fixed in Firefox 117, Firefox ESR 102.15, Firefox ESR 115.2, Thunderbird 102.15, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1847529
Bugzilla	1751583	Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1751583
Bugzilla	1833504	Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1833504
Bugzilla	1841082	Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1841082
Bugzilla	1847904	Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1847904
Bugzilla	1848999	Memory safety bugs fixed in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2	https://bugzilla.mozilla.org/show_bug.cgi?id=1848999

Type	Package URL	Namespace	Name / Product	Version	Distribution / Platform	Arch	Patch / Fix
Affected	pkg:mozilla/Thunderbird		Thunderbird	< 115.2
Fixed	pkg:mozilla/Thunderbird		Thunderbird	= 115.2

# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	Exploits	PoC	Pubblication Date	Modification Date
# CVE	Description	CVSS	EPSS	EPSS Trend (30 days)	Affected Products	Weaknesses	Security Advisories	PoC	Pubblication Date	Modification Date