Ubuntu 11.04 / 11.10 : firefox vulnerabilities (USN-1277-1)

critical Nessus プラグイン ID 56944
New! プラグインの深刻度には CVSS v3 が適用されるようになりました。

プラグインの深刻度は、デフォルトで CVSS v3 を使って計算されるように更新されました。プラグインに CVSS v3 スコアがない場合には、CVSS v2 を使って深刻度が計算されます。深刻度の表示設定は、[設定]のドロップダウンで切り替えができます。


The remote Ubuntu host is missing a security-related patch.


Yosuke Hasegawa discovered that the Mozilla browser engine mishandled invalid sequences in the Shift-JIS encoding. It may be possible to trigger this crash without the use of debugging APIs, which might allow malicious websites to exploit this vulnerability. An attacker could possibly use this flaw this to steal data or inject malicious scripts into web content. (CVE-2011-3648)

Marc Schoenefeld discovered that using Firebug to profile a JavaScript file with many functions would cause Firefox to crash. An attacker might be able to exploit this without using the debugging APIs, which could potentially remotely crash the browser, resulting in a denial of service. (CVE-2011-3650)

Jason Orendorff, Boris Zbarsky, Gregg Tavares, Mats Palmgren, Christian Holler, Jesse Ruderman, Simona Marcu, Bob Clary, and William McCloskey discovered multiple memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. An attacker might be able to use these flaws to execute arbitrary code with the privileges of the user invoking Firefox or possibly crash the browser resulting in a denial of service. (CVE-2011-3651)

It was discovered that Firefox could be caused to crash under certain conditions, due to an unchecked allocation failure, resulting in a denial of service. It might also be possible to execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-3652)

Aki Helin discovered that Firefox does not properly handle links from SVG mpath elements to non-SVG elements. An attacker could use this vulnerability to crash Firefox, resulting in a denial of service, or possibly execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2011-3654)

It was discovered that an internal privilege check failed to respect the NoWaiverWrappers introduced with Firefox 4. An attacker could possibly use this to gain elevated privileges within the browser for web content. (CVE-2011-3655).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected firefox package.




深刻度: Critical

ID: 56944

ファイル名: ubuntu_USN-1277-1.nasl

バージョン: 1.10

タイプ: local

エージェント: unix

公開日: 2011/11/26

更新日: 2019/9/19

依存関係: ssh_get_info.nasl



リスクファクター: Medium

スコア: 5.9


リスクファクター: Critical

Base Score: 10

Temporal Score: 7.4

ベクトル: AV:N/AC:L/Au:N/C:C/I:C/A:C

現状ベクトル: E:U/RL:OF/RC:C


CPE: p-cpe:/a:canonical:ubuntu_linux:firefox, cpe:/o:canonical:ubuntu_linux:11.04, cpe:/o:canonical:ubuntu_linux:11.10

必要な KB アイテム: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

エクスプロイトの容易さ: No known exploits are available

パッチ公開日: 2011/11/23

脆弱性公開日: 2011/11/9


CVE: CVE-2011-3648, CVE-2011-3650, CVE-2011-3651, CVE-2011-3652, CVE-2011-3654, CVE-2011-3655

BID: 50593, 50594, 50595, 50597, 50600, 50602

USN: 1277-1