Insufficient buffer length checks in the imap client library may crash applications that use the library to print formatted email addresses.
The imap daemon itself is not affected but certain versions of e.g.
the php imap module are (CVE-2008-5514).

The client library could also crash when a rogue server unexpectedly closes the connection (CVE-2008-5006).

リモートホストは、GLSA-201001-03 で説明されている脆弱性の影響を受けます（PHP：複数の脆弱性）

PHP で複数の脆弱性が発見されました。詳細については、下記で参照される CVE 識別子、および関連する PHP リリースノートを確認してください。
 影響：

コンテキスト依存の攻撃者は、mbstring の拡張が有効な場合、HTML エンティティを含む特別に細工された文字列を使用して、任意のコードを実行する可能性があります。さらに、リモートの攻撃者は、特別に細工された GD 画像ファイルを使用して、任意のコードを実行する可能性があります。
 また、リモートの攻撃者は、json_decode() 関数に無効な形式の文字列を渡すこと、php_zip_make_relative_path() 関数に特別に細工された ZIP ファイルを渡すこと、exif_read_data() 関数に無効な形式の JPEG 画像を渡すこと、または一時ファイルを使い果たすことで、サービス拒否を引き起こす可能性もあります。さらに、攻撃者は、証明書を偽装すること、特定の条件を満たせば safe_mode および open_basedir のさまざまな制限をバイパスすること、クロスサイトスクリプティング攻撃を仕掛けること、SQL インジェクション攻撃をより簡単に仕掛けること、Apache で実行中の場合に、悪意のある .htaccess エントリを通じて、同じサーバー上のその他の仮想ホストの設定を操作すること、メモリの一部を漏洩すること、そして特別に細工された ZIP アーカイブを介して、任意のファイルを書き込むこともできます。不明な影響や攻撃ベクトルがある一部の脆弱性も報告されました。
 回避策：

現時点で、既知の回避策はありません。

The remote host is affected by the vulnerability described in GLSA-200911-03 (UW IMAP toolkit: Multiple vulnerabilities)

    Multiple vulnerabilities were found in the UW IMAP toolkit:
    Aron Andersson and Jan Sahlin of Bitsec reported boundary errors in     the 'tmail' and 'dmail' utilities when processing overly long mailbox     names, leading to stack-based buffer overflows (CVE-2008-5005).
    An error in smtp.c in the c-client library was found, leading to a     NULL pointer dereference vulnerability (CVE-2008-5006).
    Ludwig     Nussel reported an off-by-one error in the rfc822_output_char()     function in the RFC822BUFFER routines in the c-client library, as used     by the UW IMAP toolkit (CVE-2008-5514).
  Impact :

    A remote attacker could send an e-mail to a destination mailbox name     composed of a username and '+' character followed by a long string,     possibly leading to the execution of arbitrary code. A local attacker     could gain privileges by specifying a long folder extension argument to     the tmail or dmail program. Furthermore, a remote attacker could send a     specially crafted mail message to the UW IMAP toolkit or another daemon     using the c-client library, leading to a Denial of Service. A remote     SMTP server could respond to the QUIT command with a close of the TCP     connection instead of the expected 221 response code, possibly leading     to a Denial of Service.
  Workaround :

    There is no known workaround at this time.

SANS reports :

The University of Washington IMAP library is a library implementing the IMAP mail protocol. University of Washington IMAP is exposed to a buffer overflow issue that occurs due to a boundary error within the rfc822_output_char function in the c-client library. The University of Washington IMAP library versions prior to 2007e are affected.

The remote host is affected by the vulnerability described in GLSA-201001-03 (PHP: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in PHP. Please review the     CVE identifiers referenced below and the associated PHP release notes     for details.
  Impact :

    A context-dependent attacker could execute arbitrary code via a     specially crafted string containing an HTML entity when the mbstring     extension is enabled. Furthermore a remote attacker could execute     arbitrary code via a specially crafted GD graphics file.
    A remote attacker could also cause a Denial of Service via a malformed     string passed to the json_decode() function, via a specially crafted     ZIP file passed to the php_zip_make_relative_path() function, via a     malformed JPEG image passed to the exif_read_data() function, or via     temporary file exhaustion. It is also possible for an attacker to spoof     certificates, bypass various safe_mode and open_basedir restrictions     when certain criteria are met, perform Cross-site scripting attacks,     more easily perform SQL injection attacks, manipulate settings of other     virtual hosts on the same server via a malicious .htaccess entry when     running on Apache, disclose memory portions, and write arbitrary files     via a specially crafted ZIP archive. Some vulnerabilities with unknown     impact and attack vectors have been reported as well.
  Workaround :

    There is no known workaround at this time.

Update to new upstream version - 2007e. Contains fix for a security issue - buffer overflow in rfc822_output_char / rfc822_output_data (CVE-2008-5514).

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.

SANS reports :

University of Washington 'tmail' and 'dmail' are mail deliver agents.
'tmail' and 'dmail' are exposed to local buffer overflow issues because they fail to perform adequate boundary checks on user-supplied data.

Security vulnerabilities has been identified and fixed in University of Washington IMAP Toolkit :

Multiple stack-based buffer overflows in (1) University of Washington IMAP Toolkit 2002 through 2007c, (2) University of Washington Alpine 2.00 and earlier, and (3) Panda IMAP allow (a) local users to gain privileges by specifying a long folder extension argument on the command line to the tmail or dmail program; and (b) remote attackers to execute arbitrary code by sending e-mail to a destination mailbox name composed of a username and '+' character followed by a long string, processed by the tmail or possibly dmail program (CVE-2008-5005).

smtp.c in the c-client library in University of Washington IMAP Toolkit 2007b allows remote SMTP servers to cause a denial of service (NULL pointer dereference and application crash) by responding to the QUIT command with a close of the TCP connection instead of the expected 221 response code (CVE-2008-5006).

Off-by-one error in the rfc822_output_char function in the RFC822BUFFER routines in the University of Washington (UW) c-client library, as used by the UW IMAP toolkit before imap-2007e and other applications, allows context-dependent attackers to cause a denial of service (crash) via an e-mail message that triggers a buffer overflow (CVE-2008-5514).

The updated packages have been patched to prevent this. Note that the software was renamed to c-client starting from Mandriva Linux 2009.0 and only provides the shared c-client library for the imap functions in PHP.

Update :

Packages for 2008.0 are provided for Corporate Desktop 2008.0 customers.

There is a flaw in the remote UW-IMAP server that allows a remote user to execute arbitrary code on the server.  The flaw is in the way that UW-IMAP handles malformed data sent to the 'rfc822_output_char' function of the 'c-client' library.  An attacker exploiting this flaw would only need the ability to send malformed data to the server process.

ID	名稱	產品	系列	已發布	已更新	嚴重性
35247	openSUSE 10 Security Update : imap (imap-5868)	Nessus	SuSE Local Security Checks	2008/12/21	2021/1/14	medium
44892	GLSA-201001-03：PHP：複数の脆弱性	Nessus	Gentoo Local Security Checks	2010/2/25	2021/1/6	critical
42913	GLSA-200911-03 : UW IMAP toolkit: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2009/11/30	2021/1/6	critical
35338	FreeBSD : imap-uw -- imap c-client buffer overflow (69a20ce4-dfee-11dd-a765-0030843d3802)	Nessus	FreeBSD Local Security Checks	2009/1/12	2021/1/6	medium
44892	GLSA-201001-03 : PHP: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2010/2/25	2021/1/6	critical
35438	Fedora 9 : uw-imap-2007e-1.fc9 (2009-0371)	Nessus	Fedora Local Security Checks	2009/1/22	2021/1/11	medium
39987	openSUSE Security Update : imap (imap-368)	Nessus	SuSE Local Security Checks	2009/7/21	2021/1/14	medium
40232	openSUSE Security Update : imap (imap-368)	Nessus	SuSE Local Security Checks	2009/7/21	2021/1/14	medium
35341	FreeBSD : imap-uw -- local buffer overflow vulnerabilities (a6713190-dfea-11dd-a765-0030843d3802)	Nessus	FreeBSD Local Security Checks	2009/1/12	2021/1/6	medium
37219	Fedora 10 : uw-imap-2007e-1.fc10 (2009-0413)	Nessus	Fedora Local Security Checks	2009/4/23	2021/1/11	medium
39573	Mandriva Linux Security Advisory : imap (MDVSA-2009:146-1)	Nessus	Mandriva Local Security Checks	2009/6/30	2021/1/6	critical
4798	UW-IMAP < 2007e c-client Library Overflow	Nessus Network Monitor	IMAP Servers	2008/12/22	2019/3/6	medium

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