※ 本文转录自 [Lan] 信箱 作者: [email protected] (TWCERT/CC Fellows) 标题: 【TWCERT/CC安全通报】TW-CA-2005-025-[RHSA-2005 时间: Fri Mar 4 17:40:57 2005 -----BEGIN PGP SIGNED MESSAGE----- TW-CA-2005-025-[RHSA-2005:173-01: Moderate: squid security update] ──────────────────────────────────────── TWCERT/CC发布日期：2005-03-04 原漏洞发布日期：2005-03-03 原漏洞最新更新日期：-- 通用安全漏洞编号：CAN-2005-0446 分类：Dos, 来源参考：RHSA-2005:173-01 ──── 简述 ───────────────────────────────── 更新 squid 套件，修正阻断服务攻击弱点。 Red Hat Security Response Team 将此列为高度安全性更新。 ──── 说明 ───────────────────────────────── Squid 是全功能的 Web proxy cache。 Squid 在处理 FQDN 检视时存在错误。利用传送特别设计的 DNS 回应给 FQDN 检视可能会造成 Squid 伺服器当机。CVE (cve.mitre.org) 已将此问题命名为 CAN-2005-0446 。 建议 squid 使用者更新此勘误套件，如此即不会受此问题影响。 ──── 影响平台 ─────────────────────────────── ‧Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64 ‧Red Hat Linux Advanced Workstation 2.1 - ia64 ‧Red Hat Enterprise Linux ES version 2.1 - i386 ‧Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 ‧Red Hat Desktop version 3 - i386, x86_64 ‧Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 ‧Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64 ──── 修正方式 ─────────────────────────────── 在安装更新之前，确定已安装之前所有跟系统相关的错误修正。使用 Red Hat Network 来 下载及更新套件，输入以下指令启动 Red Hat Update Agent： up2date 若要获得更多手动安装套件的资讯，请参阅下面网址，寻求适合您系统的指引手册： http://www.redhat.com/docs/manuals/enterprise/ Bug IDs fixed（详见 http://bugzilla.redhat.com/）： 148882 - CAN-2005-0446 Squid DoS[阻断服务攻击] from bad DNS response RPMs 需求： Red Hat Enterprise Linux AS (Advanced Server) version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/squid-2.4.STABLE7-1.21as.5 src.rpm 63b4267b6fb3c1345cb9dee4a979eee1 squid-2.4.STABLE7-1.21as.5.src.rpm i386: 81505707ca33f4870a62382b88745bbc squid-2.4.STABLE7-1.21as.5.i386.rpm ia64: c3a025c8b1847017da5e05d039e3bcc0 squid-2.4.STABLE7-1.21as.5.ia64.rpm Red Hat Linux Advanced Workstation 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/squid-2.4.STABLE7-1.21as.5 src.rpm 63b4267b6fb3c1345cb9dee4a979eee1 squid-2.4.STABLE7-1.21as.5.src.rpm ia64: c3a025c8b1847017da5e05d039e3bcc0 squid-2.4.STABLE7-1.21as.5.ia64.rpm Red Hat Enterprise Linux ES version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/squid-2.4.STABLE7-1.21as.5 src.rpm 63b4267b6fb3c1345cb9dee4a979eee1 squid-2.4.STABLE7-1.21as.5.src.rpm i386: 81505707ca33f4870a62382b88745bbc squid-2.4.STABLE7-1.21as.5.i386.rpm Red Hat Enterprise Linux AS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/squid-2.5.STABLE3-6.3E.8.src rpm ee14ff8dd48ea6e08c97dd4c2167550a squid-2.5.STABLE3-6.3E.8.src.rpm i386: 25f9ca52f04b6571c9b29b2de47a82e4 squid-2.5.STABLE3-6.3E.8.i386.rpm ia64: 429a13ef1b3e9dce3fe157cd3b6d1651 squid-2.5.STABLE3-6.3E.8.ia64.rpm ppc: e3f3bab5baefba94302135e61499683f squid-2.5.STABLE3-6.3E.8.ppc.rpm s390: 0c97fc7f12ac29445de550ec866feb82 squid-2.5.STABLE3-6.3E.8.s390.rpm s390x: 9a2a1b5c70a510695ee560fe55358228 squid-2.5.STABLE3-6.3E.8.s390x.rpm x86_64: c2757abe79275c3b8ff61abb3a9c2406 squid-2.5.STABLE3-6.3E.8.x86_64.rpm Red Hat Desktop version 3: SRPMS: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/squid-2.5.STABLE3-6.3E. 8.src.rpm ee14ff8dd48ea6e08c97dd4c2167550a squid-2.5.STABLE3-6.3E.8.src.rpm i386: 25f9ca52f04b6571c9b29b2de47a82e4 squid-2.5.STABLE3-6.3E.8.i386.rpm x86_64: c2757abe79275c3b8ff61abb3a9c2406 squid-2.5.STABLE3-6.3E.8.x86_64.rpm Red Hat Enterprise Linux ES version 3: SRPMS: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/squid-2.5.STABLE3-6.3E.8.src rpm ee14ff8dd48ea6e08c97dd4c2167550a squid-2.5.STABLE3-6.3E.8.src.rpm i386: 25f9ca52f04b6571c9b29b2de47a82e4 squid-2.5.STABLE3-6.3E.8.i386.rpm ia64: 429a13ef1b3e9dce3fe157cd3b6d1651 squid-2.5.STABLE3-6.3E.8.ia64.rpm x86_64: c2757abe79275c3b8ff61abb3a9c2406 squid-2.5.STABLE3-6.3E.8.x86_64.rpm Red Hat Enterprise Linux WS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/squid-2.5.STABLE3-6.3E.8.src rpm ee14ff8dd48ea6e08c97dd4c2167550a squid-2.5.STABLE3-6.3E.8.src.rpm i386: 25f9ca52f04b6571c9b29b2de47a82e4 squid-2.5.STABLE3-6.3E.8.i386.rpm ia64: 429a13ef1b3e9dce3fe157cd3b6d1651 squid-2.5.STABLE3-6.3E.8.ia64.rpm x86_64: c2757abe79275c3b8ff61abb3a9c2406 squid-2.5.STABLE3-6.3E.8.x86_64.rpm 这些套件基於安全理由，均由 Red Hat 公司使用 GPG 签章，可至下列网址取得 key： https://www.redhat.com/security/team/key.html#package ──── 影响结果 ─────────────────────────────── ──── 联络TWCERT/CC ───────────────────────────── Tel: 886-7-5250211 FAX: 886-7-5250212 886-2-23563303 886-2-23924082 Email: [email protected] URL: http://www.cert.org.tw/ PGP key: http://www.cert.org.tw/eng/pgp.htm ──────────────────────────────────────── 附件：[Moderate: squid security update] ──── 原文 ───────────────────────────────── - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Moderate: squid security update Advisory ID: RHSA-2005:173-01 Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-173.html Issue date: 2005-03-03 Updated on: 2005-03-03 Product: Red Hat Enterprise Linux CVE Names: CAN-2005-0446 - - --------------------------------------------------------------------- 1. Summary: Updated squid packages that fix a denial of service issue are now available. This update has been rated as having important security impact by the Red Hat Security Response Team 2. Relevant releases/architectures: Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64 Red Hat Linux Advanced Workstation 2.1 - ia64 Red Hat Enterprise Linux ES version 2.1 - i386 Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64 3. Problem description: Squid is a full-featured Web proxy cache. A bug was found in the way Squid handles FQDN lookups. It was possible to crash the Squid server by sending a carefully crafted DNS response to an FQDN lookup. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-0446 to this issue. Users of squid should upgrade to this updated package, which contains a backported patch, and is not vulnerable to this issue. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. Use Red Hat Network to download and update your packages. To launch the Red Hat Update Agent, use the following command: up2date For information on how to install packages manually, refer to the following Web page for the System Administration or Customization guide specific to your system: http://www.redhat.com/docs/manuals/enterprise/ 5. Bug IDs fixed (http://bugzilla.redhat.com/): 148882 - CAN-2005-0446 Squid DoS from bad DNS response 6. RPMs required: Red Hat Enterprise Linux AS (Advanced Server) version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AS/en/os/SRPMS/squid-2.4.STABLE7-1.21as.5 src.rpm 63b4267b6fb3c1345cb9dee4a979eee1 squid-2.4.STABLE7-1.21as.5.src.rpm i386: 81505707ca33f4870a62382b88745bbc squid-2.4.STABLE7-1.21as.5.i386.rpm ia64: c3a025c8b1847017da5e05d039e3bcc0 squid-2.4.STABLE7-1.21as.5.ia64.rpm Red Hat Linux Advanced Workstation 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1AW/en/os/SRPMS/squid-2.4.STABLE7-1.21as.5 src.rpm 63b4267b6fb3c1345cb9dee4a979eee1 squid-2.4.STABLE7-1.21as.5.src.rpm ia64: c3a025c8b1847017da5e05d039e3bcc0 squid-2.4.STABLE7-1.21as.5.ia64.rpm Red Hat Enterprise Linux ES version 2.1: SRPMS: ftp://updates.redhat.com/enterprise/2.1ES/en/os/SRPMS/squid-2.4.STABLE7-1.21as.5 src.rpm 63b4267b6fb3c1345cb9dee4a979eee1 squid-2.4.STABLE7-1.21as.5.src.rpm i386: 81505707ca33f4870a62382b88745bbc squid-2.4.STABLE7-1.21as.5.i386.rpm Red Hat Enterprise Linux AS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/squid-2.5.STABLE3-6.3E.8.src rpm ee14ff8dd48ea6e08c97dd4c2167550a squid-2.5.STABLE3-6.3E.8.src.rpm i386: 25f9ca52f04b6571c9b29b2de47a82e4 squid-2.5.STABLE3-6.3E.8.i386.rpm ia64: 429a13ef1b3e9dce3fe157cd3b6d1651 squid-2.5.STABLE3-6.3E.8.ia64.rpm ppc: e3f3bab5baefba94302135e61499683f squid-2.5.STABLE3-6.3E.8.ppc.rpm s390: 0c97fc7f12ac29445de550ec866feb82 squid-2.5.STABLE3-6.3E.8.s390.rpm s390x: 9a2a1b5c70a510695ee560fe55358228 squid-2.5.STABLE3-6.3E.8.s390x.rpm x86_64: c2757abe79275c3b8ff61abb3a9c2406 squid-2.5.STABLE3-6.3E.8.x86_64.rpm Red Hat Desktop version 3: SRPMS: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/squid-2.5.STABLE3-6.3E. 8.src.rpm ee14ff8dd48ea6e08c97dd4c2167550a squid-2.5.STABLE3-6.3E.8.src.rpm i386: 25f9ca52f04b6571c9b29b2de47a82e4 squid-2.5.STABLE3-6.3E.8.i386.rpm x86_64: c2757abe79275c3b8ff61abb3a9c2406 squid-2.5.STABLE3-6.3E.8.x86_64.rpm Red Hat Enterprise Linux ES version 3: SRPMS: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/squid-2.5.STABLE3-6.3E.8.src rpm ee14ff8dd48ea6e08c97dd4c2167550a squid-2.5.STABLE3-6.3E.8.src.rpm i386: 25f9ca52f04b6571c9b29b2de47a82e4 squid-2.5.STABLE3-6.3E.8.i386.rpm ia64: 429a13ef1b3e9dce3fe157cd3b6d1651 squid-2.5.STABLE3-6.3E.8.ia64.rpm x86_64: c2757abe79275c3b8ff61abb3a9c2406 squid-2.5.STABLE3-6.3E.8.x86_64.rpm Red Hat Enterprise Linux WS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/squid-2.5.STABLE3-6.3E.8.src rpm ee14ff8dd48ea6e08c97dd4c2167550a squid-2.5.STABLE3-6.3E.8.src.rpm i386: 25f9ca52f04b6571c9b29b2de47a82e4 squid-2.5.STABLE3-6.3E.8.i386.rpm ia64: 429a13ef1b3e9dce3fe157cd3b6d1651 squid-2.5.STABLE3-6.3E.8.ia64.rpm x86_64: c2757abe79275c3b8ff61abb3a9c2406 squid-2.5.STABLE3-6.3E.8.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://www.redhat.com/security/team/key/#package 7. References: http://www.squid-cache.org/Versions/v2/2.5/bugs/#squid-2.5.STABLE8-dns_assert http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0446 8. Contact: The Red Hat security contact is <[email protected]>. More contact details at https://www.redhat.com/security/team/contact/ ──────────────────────────────────────── -----BEGIN PGP SIGNATURE----- Version: PGP 7.0.4 iQEVAwUBQigqAacyQYefg2/NAQGtAwgAlyWgQjudc3p4w/MF970rtXQBjAtX0/oU SOoAxFbrXxn2Lc7jL4u/UAVYtFKbkPSUOChaH9oAGk7/tx3W2L4knlVdxbSrm/wB xW/fQ0jcgE8ONonBokRhq7XjGKus+NFCA7+qQ756wQCKy7A+03Zs0FrvY5QAgH+C 8toUfSmaberHYlaJyr+3vzbR0/ccH4H94quiEZBwAVI6U4HwUBPZeTMRf1QjIKOn QuWixxpXNScEiEO6/y9nLtAmRISKcM3nvgfezXHkvQSvVEhJic7lbkAv7epA+RrS LNagoelMUGPEz4PuH/k6g2u6aieqAcFY3OExLgNVc+sKjmljqylynA== =jK+y -----END PGP SIGNATURE----- -- Taiwan Computer Emergency Response Team Security Advisory mailing list. 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