※ 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-2005-023-[RHSA-2005 时间: Fri Feb 25 10:26:17 2005 -----BEGIN PGP SIGNED MESSAGE----- TW-CA-2005-023-[RHSA-2005:080-01: Low: cpio security update] ──────────────────────────────────────── TWCERT/CC发布日期：2005-02-25 原漏洞发布日期：2005-02-18 原漏洞最新更新日期：-- 通用安全漏洞编号：CAN-1999-1572 分类：Gain Privilege 来源参考：RHSA-2005:080-01 ──── 简述 ───────────────────────────────── 更新 cpio 套件，修正 umask 错误并支援超过 2GB 的大型档案。 Red Hat Security Response Team 将此列为低度安全性更新。 ──── 说明 ───────────────────────────────── GNU cpio 将档案复制到 cpio 或 tar 压缩档。 cpio 用到 -O 压缩选项产生新档时会使用 0 umask，尽管有使用者的 umask 设定， 仍产出权限为 0666 的档案(皆可读写)。CVE (cve.mitre.org) 已将此问题命名为 CAN-1999-1572。 建议 cpio 使用者更新此勘误套件，解决此问题与支援超过 2GB 的大型档案。 ──── 影响平台 ─────────────────────────────── ‧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/）： 145720 - CAN-1999-1572 cpio insecure file creation 105617 - cpio does not support large files > 2GB 144688 - cpio fails to unpack initrd on ppc RPM 需求： Red Hat Enterprise Linux AS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/cpio-2.5-3e.3.src.rpm 53c26afeb29e541f23e3bf74049632e0 cpio-2.5-3e.3.src.rpm i386: 2f7640bac79d70881542b4ea2f27b9a9 cpio-2.5-3e.3.i386.rpm ia64: af616c0444113d8056fc9b462da9ea1e cpio-2.5-3e.3.ia64.rpm ppc: b7af34936d1cf57f43ae4f47cdb4a320 cpio-2.5-3e.3.ppc.rpm s390: 6a3deef23563bffca6a8b50cc153408a cpio-2.5-3e.3.s390.rpm s390x: 67ea8870629f5355f5935699c19e95a9 cpio-2.5-3e.3.s390x.rpm x86_64: 64839becc965195850d50c074c375a68 cpio-2.5-3e.3.x86_64.rpm Red Hat Desktop version 3: SRPMS: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/cpio-2.5-3e.3.src.rpm 53c26afeb29e541f23e3bf74049632e0 cpio-2.5-3e.3.src.rpm i386: 2f7640bac79d70881542b4ea2f27b9a9 cpio-2.5-3e.3.i386.rpm x86_64: 64839becc965195850d50c074c375a68 cpio-2.5-3e.3.x86_64.rpm Red Hat Enterprise Linux ES version 3: SRPMS: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/cpio-2.5-3e.3.src.rpm 53c26afeb29e541f23e3bf74049632e0 cpio-2.5-3e.3.src.rpm i386: 2f7640bac79d70881542b4ea2f27b9a9 cpio-2.5-3e.3.i386.rpm ia64: af616c0444113d8056fc9b462da9ea1e cpio-2.5-3e.3.ia64.rpm x86_64: 64839becc965195850d50c074c375a68 cpio-2.5-3e.3.x86_64.rpm Red Hat Enterprise Linux WS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/cpio-2.5-3e.3.src.rpm 53c26afeb29e541f23e3bf74049632e0 cpio-2.5-3e.3.src.rpm i386: 2f7640bac79d70881542b4ea2f27b9a9 cpio-2.5-3e.3.i386.rpm ia64: af616c0444113d8056fc9b462da9ea1e cpio-2.5-3e.3.ia64.rpm x86_64: 64839becc965195850d50c074c375a68 cpio-2.5-3e.3.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：[Low: cpio security update] ──── 原文 ───────────────────────────────── - - --------------------------------------------------------------------- Red Hat Security Advisory Synopsis: Low: cpio security update Advisory ID: RHSA-2005:080-01 Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-080.html Issue date: 2005-02-18 Updated on: 2005-02-18 Product: Red Hat Enterprise Linux Keywords: cpio umask CVE Names: CAN-1999-1572 - - --------------------------------------------------------------------- 1. Summary: An updated cpio package that fixes a umask bug and supports large files (>2GB) is now available. This update has been rated as having low security impact by the Red Hat Security Response Team 2. Relevant releases/architectures: 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: GNU cpio copies files into or out of a cpio or tar archive. It was discovered that cpio uses a 0 umask when creating files using the -O (archive) option. This creates output files with mode 0666 (all can read and write) regardless of the users umask setting. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-1999-1572 to this issue. All users of cpio should upgrade to this updated package, which resolves this issue, and adds support for large files (> 2GB). 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/): 145720 - CAN-1999-1572 cpio insecure file creation 105617 - cpio does not support large files > 2GB 144688 - cpio fails to unpack initrd on ppc 6. RPMs required: Red Hat Enterprise Linux AS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/cpio-2.5-3e.3.src.rpm 53c26afeb29e541f23e3bf74049632e0 cpio-2.5-3e.3.src.rpm i386: 2f7640bac79d70881542b4ea2f27b9a9 cpio-2.5-3e.3.i386.rpm ia64: af616c0444113d8056fc9b462da9ea1e cpio-2.5-3e.3.ia64.rpm ppc: b7af34936d1cf57f43ae4f47cdb4a320 cpio-2.5-3e.3.ppc.rpm s390: 6a3deef23563bffca6a8b50cc153408a cpio-2.5-3e.3.s390.rpm s390x: 67ea8870629f5355f5935699c19e95a9 cpio-2.5-3e.3.s390x.rpm x86_64: 64839becc965195850d50c074c375a68 cpio-2.5-3e.3.x86_64.rpm Red Hat Desktop version 3: SRPMS: ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/cpio-2.5-3e.3.src.rpm 53c26afeb29e541f23e3bf74049632e0 cpio-2.5-3e.3.src.rpm i386: 2f7640bac79d70881542b4ea2f27b9a9 cpio-2.5-3e.3.i386.rpm x86_64: 64839becc965195850d50c074c375a68 cpio-2.5-3e.3.x86_64.rpm Red Hat Enterprise Linux ES version 3: SRPMS: ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/cpio-2.5-3e.3.src.rpm 53c26afeb29e541f23e3bf74049632e0 cpio-2.5-3e.3.src.rpm i386: 2f7640bac79d70881542b4ea2f27b9a9 cpio-2.5-3e.3.i386.rpm ia64: af616c0444113d8056fc9b462da9ea1e cpio-2.5-3e.3.ia64.rpm x86_64: 64839becc965195850d50c074c375a68 cpio-2.5-3e.3.x86_64.rpm Red Hat Enterprise Linux WS version 3: SRPMS: ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/cpio-2.5-3e.3.src.rpm 53c26afeb29e541f23e3bf74049632e0 cpio-2.5-3e.3.src.rpm i386: 2f7640bac79d70881542b4ea2f27b9a9 cpio-2.5-3e.3.i386.rpm ia64: af616c0444113d8056fc9b462da9ea1e cpio-2.5-3e.3.ia64.rpm x86_64: 64839becc965195850d50c074c375a68 cpio-2.5-3e.3.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://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-1999-1572 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 iQEVAwUBQh6Ky6cyQYefg2/NAQHnggf/Vhq45wKEiZ/YZpPDzSvSR1W4ruY8WE3o hs7mhR4hmOOtNTH4mFRkDpcfWbokpop4k8d48IntKfwd/8gu3Q7NbFl8eQWb+8Dl tJT735z3gwR3SteNvQ6wyoWimVHMfhr6GF/KHIBOgiUZ9+XJyDuYOD5xD/G6ZrOY iYpswhWZKG5EjfQAw+XyDEZpL5Yzetkj0ABoCrbiwHB2YCTnQmz4ewNPiDHjMvCx /gmURtHuQjP8OV6+LNPNch+ELY3GWFIYIr114S9gLc5xQ5uqeaOFYfdjEfY0kMoV mLCBhpNpJO3IWTpEogR6gsMV2AF7Glpj7WJefNY9CDowdqFx1/YkQA== =7DIT -----END PGP SIGNATURE----- -- Taiwan Computer Emergency Response Team Security Advisory mailing list. Mail to : [email protected] and include a line "subscribe advisory". Please visit http://www.cert.org.tw/. PGP key : http://www.cert.org.tw/eng/pgp.htm