Debian セキュリティ勧告

DSA-197-1 courier -- バッファオーバーフロー

報告日時:
2002-11-15
影響を受けるパッケージ:
courier
危険性:
あり
参考セキュリティデータベース:
Mitre の CVE 辞書: CVE-2002-1311.
詳細:

Courier sqwebmail (ローカルのメールボックスに対して認証されたアクセス を提供する CGI プログラム) パッケージに問題が発見されました。 このプログラムは、特定の条件のもとで権限を落とすのが遅すぎるため、 ローカルのシェルの実行権限をもつユーザによって sqwebmail バイナリ を実行でき、ローカルのファイルシステムにある任意のファイルを 読むことができてしまいます。

この問題は、現安定版 (stable)(woody) ではバージョン 0.37.3-2.3 で、 不安定版 (unstable)(sid) ではバージョン 0.40.0-1 で修正されています。 なお、旧安定版 (potato) は Courier sqwebmail パッケージ群を含みません。 courier-ssl パッケージ群も、sqwebmail パッケージを 曝さないため、この問題の影響を受けません。

sqwebmail を早急にアップグレードすることをお勧めします。

修正:

Debian GNU/Linux 3.0 (woody)

ソース:
http://security.debian.org/pool/updates/main/c/courier/courier_0.37.3-2.3.diff.gz
http://security.debian.org/pool/updates/main/c/courier/courier_0.37.3-2.3.dsc
http://security.debian.org/pool/updates/main/c/courier/courier_0.37.3.orig.tar.gz
アーキテクチャ非依存コンポーネント:
http://security.debian.org/pool/updates/main/c/courier/courier-doc_0.37.3-2.3_all.deb
Alpha:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.1_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_alpha.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_alpha.deb
ARM:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_arm.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_arm.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_i386.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_i386.deb
Intel IA-64:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_ia64.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_ia64.deb
HP Precision:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_hppa.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_hppa.deb
Motorola 680x0:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_m68k.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_m68k.deb
Big endian MIPS:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_mips.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_mips.deb
Little endian MIPS:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_mipsel.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_powerpc.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_s390.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/c/courier/courier-authdaemon_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-authmysql_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-base_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-debug_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-imap_1.4.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-ldap_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-maildrop_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mlm_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-mta_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pcp_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-pop_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/courier-webadmin_0.37.3-2.3_sparc.deb
http://security.debian.org/pool/updates/main/c/courier/sqwebmail_0.37.3-2.3_sparc.deb

一覧にあるファイルの MD5 チェックサムは勧告の原文にあります。