Mozilla Thunderbirdメールクライアントで複数のセキュリティ問題が見つかりました: 複数のメモリ安全性のエラー、バッファオーバーフローおよび他の実装エラーにより、クラッシュまたは任意のコードの実行が発生する可能性があります。

この更新では、ソースパッケージ名がicedoveからthunderbirdに変更されるため、今後のアドバイザリではicedoveに言及されなくなります。

Debian 7「Wheezy」では、これらの問題はバージョン1:52.4.0-1~deb7u1で修正されました。

thunderbirdパッケージをアップグレードすることをお勧めします。

注: Tenable Network Securityは、前述の記述ブロックを DLA セキュリティアドバイザリから直接抽出しています。Tenableでは、新たな問題を持ち込まずに、できる限り自動的に整理して書式設定するようにしています。

リモートホストは、GLSA-201802-03（Mozilla Firefox：複数の脆弱性）で説明されている脆弱性に影響されています。複数の脆弱性がMozilla Firefoxで発見されています。詳細については、記載されているCVE識別番号を参照してください。影響：リモートの攻撃者が、ユーザーを誘導して特別に細工されたWebページを表示させる可能性があります。その結果、プロセスの権限で任意のコードが実行されたり、サービス拒否状態が引き起こされたりする可能性があります。さらに、リモートの攻撃者が、中間者攻撃を実行し、機密情報を取得し、アドレスバーを偽装し、クリックジャッキング攻撃を実施し、セキュリティ制限および保護メカニズムをバイパスし、その他の特定されていない影響を及ぼすことがあります。回避策：現時点では、既知の回避策はありません。

Versions of Mozilla Firefox earlier than 56 are unpatched for the following vulnerabilities :

 - An unspecified flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. No further details have been provided by the vendor.
 - A flaw exists in the 'js::AddPropertyTypesAfterProtoChange()' function in 'js/src/vm/NativeObject.cpp' that is triggered when handling the 'unknown-properties' flag. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'layout/style/nsCSSPseudoElements.cpp' that is triggered when handling pseudo-element atoms. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. No further details have been provided by the vendor.
 - A flaw exists in 'dom/base/nsDocument.cpp' that is triggered when handling intersection observers. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'LayerTransactionParent::Destroy()' function in 'gfx/layers/ipc/LayerTransactionParent.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An overflow condition exists in the 'FPSCounter::PrintHistogram()' function in 'gfx/layers/composite/FPSCounter.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to cause a buffer overflow and potentially execute arbitrary code.
 - A flaw exists in the 'FlagAllOperandsAsHavingRemovedUses()' function in 'js/src/jit/IonAnalysis.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'memory/mozjemalloc/mozjemalloc.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'ReadCompressedIndexDataValuesFromBlob()' function in 'dom/indexedDB/ActorsParent.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. No further details have been provided by the vendor.
 - An unspecified flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. No further details have been provided by the vendor.
 - A flaw exists in 'js/src/vm/StructuredClone.cpp' that is triggered when handling structured clone reads. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. No further details have been provided by the vendor.
 - A flaw exists in 'editor/libeditor/HTMLEditor.cpp' that is triggered when handling root elements in the editor. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'dom/media/GraphDriver.cpp' that is triggered when handling errors. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An overflow condition exists in the 'hnj_hyphen_hyphword()' function in 'hyphen.c' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to cause a buffer overflow and potentially execute arbitrary code within a process linked against the library.
 - A flaw exists in the 'EditorBase::FinalizeSelection()' function in 'editor/libeditor/EditorBase.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'DocAccessible::DoARIAOwnsRelocation()' function in 'accessible/generic/DocAccessible.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. No further details have been provided by the vendor.
 - A use-after-free condition exists in the Fetch API related to missing thread safety. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is triggered when pages enter fullscreen mode without user notification. This allows a context-dependent attacker to spoof the address bar.
 - A use-after-free error exists in 'accessible/generic/DocAccessible.cpp' that is triggered when manipulating Accessible Rich Internet Applications (ARIA) elements. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists in design mode that is triggered when objects are resized. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists in the 'ssl3_HandleCertificateVerify()' function in 'lib/ssl/ssl3con.c' that is triggered when handling handshake hashes during TLS '1.2' exchanges. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists that is triggered as the content principal is not properly checked when handling drag and drop actions onto the browser UI. With specially crafted web content including file: URLs, a context-dependent attacker can open local files.
 - A flaw exists in the PendingLookup class in 'toolkit/components/downloads/ApplicationReputation.cpp' that is triggered when handling downloads encoded with data: and blob: URL elements. This may allow a context-dependent attacker to bypass the phishing and malware protection feature.
 - An integer truncation flaw exists in the JavaScript parser that may allow a context-dependent attacker to potentially disclose memory contents.
 - A flaw exists in the 'MacOSFontEntry::ReadCMAP()' function in 'gfx/thebes/gfxMacPlatformFontList.mm' that is triggered as certain tibetan and arabic unicode characters are displayed as whitespace in combination with macOS fonts. With a specially crafted IDN domain, a context-dependent attacker can spoof a valid URL and conduct phishing attacks.
 - A flaw exists that is triggered when creating a modal dialog using the data: protocol via JavaScript. With a specially crafted web page, a context-dependent attacker can spoof the origin of the modal dialog.
 - A flaw exists in the WebExtensions component that is triggered when handling popups and panels in the extension UI. This may allow a context-dependent attacker to load an 'about:' URL.
 - A flaw exists in the WebExtensions component that is triggered when handling file downloads. This may allow a context-dependent attacker to download and open files without user interaction.
 - A flaw exists in the 'nsDocument::InitCSP()' function in 'dom/base/nsDocument.cpp' that is triggered as the sandbox directive does not create unique origin. This may result in incorrect enforcement of the content security policy (CSP).
 - A flaw exists in the WebCrypto API that is triggered as the AES-GCM implementation allows a zero-length IV. This may allow a context-dependent attacker to determine the authentication key.
 - A flaw exists that is is triggered as results of the 'instanceof' operator can be manipulated. With specially crafted web content, a context-dependent attacker can bypass the Xray wrapper mechanism.
 - An unspecified flaw exists that is triggered when drawing and validating elements with the ANGLE graphics library. This may allow a context-dependent attacker to cause a buffer overflow, potentially allowing the execution of arbitrary code.
 - A flaw exists related to speculative execution, which is used as a performance feature to speed up operations. This optimization can result in memory being cached during indirect branch prediction. This may allow a local attacker to train the Branch Target Buffer (BTB) to trigger a false prediction to a specially crafted memory location, causing a speculative execution of a crafted gadget and the caching of arbitrary memory. Using a side-channel attack on the cache the attacker can disclose parts of the privileged kernel memory.

Versions of Mozilla Firefox ESR earlier than 52.4 are unpatched for the following vulnerabilities :

 - A flaw exists in 'js/src/vm/StructuredClone.cpp' that is triggered when handling structured clone reads. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An unspecified flaw exists that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code. No further details have been provided by the vendor.
 - A flaw exists in 'editor/libeditor/HTMLEditor.cpp' that is triggered when handling root elements in the editor. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in 'dom/media/GraphDriver.cpp' that is triggered when handling errors. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - An overflow condition exists in the 'hnj_hyphen_hyphword()' function in 'hyphen.c' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to cause a buffer overflow and potentially execute arbitrary code within a process linked against the library.
 - A flaw exists in the 'EditorBase::FinalizeSelection()' function in 'editor/libeditor/EditorBase.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A flaw exists in the 'DocAccessible::DoARIAOwnsRelocation()' function in 'accessible/generic/DocAccessible.cpp' that is triggered as certain input is not properly validated. This may allow a context-dependent attacker to corrupt memory and potentially execute arbitrary code.
 - A use-after-free condition exists in the Fetch API related to missing thread safety. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists in 'accessible/generic/DocAccessible.cpp' that is triggered when manipulating Accessible Rich Internet Applications (ARIA) elements. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists in design mode that is triggered when objects are resized. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A use-after-free error exists in the 'ssl3_HandleCertificateVerify()' function in 'lib/ssl/ssl3con.c' that is triggered when handling handshake hashes during TLS '1.2' exchanges. This may allow a context-dependent attacker to dereference already freed memory and potentially execute arbitrary code.
 - A flaw exists in the PendingLookup class in 'toolkit/components/downloads/ApplicationReputation.cpp' that is triggered when handling downloads encoded with data: and blob: URL elements. This may allow a context-dependent attacker to bypass the phishing and malware protection feature.
 - A flaw exists in the 'MacOSFontEntry::ReadCMAP()' function in 'gfx/thebes/gfxMacPlatformFontList.mm' that is triggered as certain tibetan and arabic unicode characters are displayed as whitespace in combination with macOS fonts. With a specially crafted IDN domain, a context-dependent attacker can spoof a valid URL and conduct phishing attacks.
 - A flaw exists in the 'nsDocument::InitCSP()' function in 'dom/base/nsDocument.cpp' that is triggered as the sandbox directive does not create unique origin. This may result in incorrect enforcement of the content security policy (CSP).
 - An unspecified flaw exists that is triggered when drawing and validating elements with the ANGLE graphics library. This may allow a context-dependent attacker to cause a buffer overflow, potentially allowing the execution of arbitrary code.

ID	名稱	產品	系列	已發布	已更新	嚴重性
104335	Debian DLA-1153-1: icedove/thunderbirdセキュリティ更新	Nessus	Debian Local Security Checks	2017/11/2	2021/1/11	critical
106884	GLSA-201802-03：Mozilla Firefox：複数の脆弱性	Nessus	Gentoo Local Security Checks	2018/2/20	2024/1/16	critical
700321	Mozilla Firefox < 56 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2018/8/21	2019/3/6	high
700331	Mozilla Firefox ESR < 52.4 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	2018/8/21	2019/11/6	high

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critical

critical

high

high