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[MFSA-2023-34] Security Vulnerabilities fixed in Firefox 117

Severity High
Affected Packages 1
Fixed Packages 1
CVEs 14
Info Packages References Vulnerabilities

This advisory was updated October 24, 2023 to add CVE-2023-5732 which was included in the original release of Firefox 117, but did not appear in the advisory published at that time.

  • 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-2023-4579: Persisted search terms were formatted as URLs (moderate)
    Search queries in the default search engine could appear to have been the currently navigated URL if the search query itself was a well formed URL. This could have led to a site spoofing another if it had been maliciously set as the default search engine.

  • 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.

  • CVE-2023-5732: Address bar spoofing via bidirectional characters (moderate)
    An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited.

Package Affected Version
pkg:mozilla/Firefox < 117
Package Fixed Version
pkg:mozilla/Firefox = 117
ID
MFSA-2023-34
Severity
high
URL
https://www.mozilla.org/en-US/security/advisories/mfsa2023-34
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 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 1842766 https://bugzilla.mozilla.org/show_bug.cgi?id=1842766
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 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
Bugzilla 1690979 https://bugzilla.mozilla.org/show_bug.cgi?id=1690979
Bugzilla 1836962 https://bugzilla.mozilla.org/show_bug.cgi?id=1836962
Type Package URL Namespace Name / Product Version Distribution / Platform Arch Patch / Fix
Affected pkg:mozilla/Firefox Firefox < 117
Fixed pkg:mozilla/Firefox Firefox = 117
# 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