setuid または setgid を実行中の lppasswd は、メッセージファイルの場所を指定する環境変数にまだ従います。ローカルの攻撃者がこれを悪用して、細工された書式文字列を使用して情報を収集する可能性があります。（CVE-2010-0393）

Use-after-free の脆弱性（CVE-2009-3553）の以前の修正は不完全でした。（CVE-2010-0302）

この更新では、サービス拒否の問題（CVE-2010-0302）およびその他の複数の軽微な問題が修正されます： * クラスメンバーが削除される際、classes.conf は更新されます。* ユーザーモードの依存関係が削除されました。* udev ルールが、正しい場所にインストールされました。* cups-config には、multilib のコンフリクトはありません。* ipp バックエンドは、完了時にプリンターのステータスをクリアするようになりました。* cupsGetNamedDest() が古い構成ファイルで混乱することはなくなりました。* スケジューラは、SIGPIPE をフィルターエラーとして扱わなくなりました。* gcrypt スレッドのパッチが変更されました。* パッケージは、独自のファイルシステム所有のディレクトリを持たなくなりました。

注意：Tenable Network Security は、前述の記述ブロックを Fedora 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、できる限り新たな問題を持ち込まないように、自動的に整理して書式設定するようにしています。

Updated cups packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

[Updated 12th January 2010] The packages list in this erratum has been updated to include missing i386 packages for Red Hat Enterprise Linux Desktop and RHEL Desktop Workstation.

The Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems.

A use-after-free flaw was found in the way CUPS handled references in its file descriptors-handling interface. A remote attacker could, in a specially crafted way, query for the list of current print jobs for a specific printer, leading to a denial of service (cupsd crash).
(CVE-2009-3553)

Several cross-site scripting (XSS) flaws were found in the way the CUPS web server interface processed HTML form content. If a remote attacker could trick a local user who is logged into the CUPS web interface into visiting a specially crafted HTML page, the attacker could retrieve and potentially modify confidential CUPS administration data. (CVE-2009-2820)

Red Hat would like to thank Aaron Sigel of Apple Product Security for responsibly reporting the CVE-2009-2820 issue.

Users of cups are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the update, the cupsd daemon will be restarted automatically.

A use-after-free problem in cupsd allowed remote attackers to crash the cups server (CVE-2009-3553).

This update addresses a denial of service security issue (CVE-2010-0302) as well as fixing several other small problems: * classes.conf is now updated when a class member is deleted. * the usermode dependency has been removed. * the udev rules are now installed in the correct location. * cups-config now has no multilib conflict. * the ipp backend now clears the printer status on completion. * cupsGetNamedDest() is no longer confused by old configuration files. * the scheduler no longer treats SIGPIPE as a filter error. * the gcrypt threading patch has been reverted. * the package no longer owns filesystem-owned directories.

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

Updated cups packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems.

It was discovered that the Red Hat Security Advisory RHSA-2009:1595 did not fully correct the use-after-free flaw in the way CUPS handled references in its file descriptors-handling interface. A remote attacker could send specially crafted queries to the CUPS server, causing it to crash. (CVE-2010-0302)

Users of cups are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the cupsd daemon will be restarted automatically.

lppasswd when running setuid or setgid still honors environment variables that specify the location of message files. Local attackers could exploit that to gather information by using crafted format strings. (CVE-2010-0393)

The previous fix for a use-after-free vulnerability (CVE-2009-3553) was incomplete. (CVE-2010-0302)

The remote host is affected by the vulnerability described in GLSA-201207-10 (CUPS: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in CUPS. Please review the       CVE identifiers referenced below for details.
  Impact :

    A remote attacker may be able to execute arbitrary code using specially       crafted streams, IPP requests or files, or cause a Denial of Service       (daemon crash or hang). A local attacker may be able to gain escalated       privileges or overwrite arbitrary files. Furthermore, a remote attacker       may be able to obtain sensitive information from the CUPS process or       hijack a CUPS administrator authentication request.
  Workaround :

    There is no known workaround at this time.

From Red Hat Security Advisory 2010:0129 :

Updated cups packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems.

It was discovered that the Red Hat Security Advisory RHSA-2009:1595 did not fully correct the use-after-free flaw in the way CUPS handled references in its file descriptors-handling interface. A remote attacker could send specially crafted queries to the CUPS server, causing it to crash. (CVE-2010-0302)

Users of cups are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the update, the cupsd daemon will be restarted automatically.

According to its banner, the version of CUPS installed on the remote host is earlier than 1.4.3.  Such versions are affected by several vulnerabilities : 

  - A pointer use-after-free vulnerability exists in the abstract file descriptor handling code in the 'cupsdDoSelect' function in scheduler/select.c.  A remote attacker may be able to leverage this to hang or crash the cupsd daemon by disconnecting while receiving a listing with a large number of print jobs. (STR #3200)

  - The lppasswd utility, when its setuid bit is enabled, allows a local user to escalate his or her privileges because it uses an environment variable to override CUPS' default directories and determine the location of a file with localized message strings. (STR #3482)

ID	Name	Product	Family	Published	Updated	Severity
45105	SuSE 11 セキュリティ更新：CUPS（SAT パッチ番号 2108）	Nessus	SuSE Local Security Checks	3/19/2010	1/14/2021	medium
47293	Fedora 11：cups-1.4.2-26.fc11（2010-2743）	Nessus	Fedora Local Security Checks	7/1/2010	1/11/2021	medium
42850	RHEL 5 : cups (RHSA-2009:1595)	Nessus	Red Hat Local Security Checks	11/19/2009	1/14/2021	medium
43601	openSUSE Security Update : cups (cups-1671)	Nessus	SuSE Local Security Checks	12/27/2009	1/14/2021	medium
47293	Fedora 11 : cups-1.4.2-26.fc11 (2010-2743)	Nessus	Fedora Local Security Checks	7/1/2010	1/11/2021	medium
45053	CentOS 5 : cups (CESA-2010:0129)	Nessus	CentOS Local Security Checks	3/15/2010	1/4/2021	medium
45105	SuSE 11 Security Update : CUPS (SAT Patch Number 2108)	Nessus	SuSE Local Security Checks	3/19/2010	1/14/2021	medium
59902	GLSA-201207-10 : CUPS: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	7/10/2012	1/6/2021	high
68006	Oracle Linux 5 : cups (ELSA-2010-0129)	Nessus	Oracle Linux Local Security Checks	7/12/2013	1/14/2021	medium
5512	CUPS < 1.4.3 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	4/19/2010	3/6/2019	high

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