PC16F编译器

A. Perl Unicode “\Q...\E”正则表达式

受影响系统：
Larry Wall Perl 5.8.8
描述：
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BUGTRAQ ID: 28928
CVE(CAN) ID: CVE-2008-1927

Perl是一种免费且功能强大的编程语言。

Perl在处理畸形的正则表达式时存在漏洞，如果用户所提供的正则表达式字符包含在“\Q...\E”结构所保护的变量中的话，则Perl解释器在编译正则表达式时可能会出现缓冲区溢出，导致拒绝服务的情况。

<*来源：Don Armstrong

链接：http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=454792
http://www.nntp.perl.org/group/perl.perl5.porters/2008/04/msg135902.html
http://www.debian.org/security/2008/dsa-1556
*>

测试方法：
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警 告

以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！

http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5;filename=test.pl;att=2;bug=454792

建议：
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厂商补丁：

Debian
------
Debian已经为此发布了一个安全公告（DSA-1556-1）以及相应补丁:
DSA-1556-1：New perl packages fix denial of service
链接：http://www.debian.org/security/2008/dsa-1556

补丁下载：

Source archives:

http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2.dsc
Size/MD5 checksum: 1033
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2.diff.gz
Size/MD5 checksum: 96868
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8.orig.tar.gz
Size/MD5 checksum: 12829188

Architecture independent packages:

http://security.debian.org/pool/updates/main/p/perl/perl-moles_5.8.8-7etch2_all.deb
Size/MD5 checksum: 2313432
http://security.debian.org/pool/updates/main/p/perl/perl-doc_5.8.8-7etch2_all.deb
Size/MD5 checksum: 7348546
http://security.debian.org/pool/updates/main/p/perl/libcgi-fast-perl_5.8.8-7etch2_all.deb
Size/MD5 checksum: 40980

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_alpha.deb
Size/MD5 checksum: 2928386
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_alpha.deb
Size/MD5 checksum: 1010
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_alpha.deb
Size/MD5 checksum: 821430
http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_alpha.deb
Size/MD5 checksum: 36236
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_alpha.deb
Size/MD5 checksum: 4149744
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_alpha.deb
Size/MD5 checksum: 879670

amd64 architecture (AMD x86_64 (AMD64))

http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_amd64.deb
Size/MD5 checksum: 32800
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_amd64.deb
Size/MD5 checksum: 808850
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_amd64.deb
Size/MD5 checksum: 630448
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_amd64.deb
Size/MD5 checksum: 4238138
http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_amd64.deb
Size/MD5 checksum: 2734908
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_amd64.deb
Size/MD5 checksum: 1010

arm architecture (ARM)

http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_arm.deb
Size/MD5 checksum: 2547782
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_arm.deb
Size/MD5 checksum: 759522
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_arm.deb
Size/MD5 checksum: 561950
http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_arm.deb
Size/MD5 checksum: 30340
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_arm.deb
Size/MD5 checksum: 1010
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_arm.deb
Size/MD5 checksum: 3409080

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_hppa.deb
Size/MD5 checksum: 2735266
http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_hppa.deb
Size/MD5 checksum: 33196
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_hppa.deb
Size/MD5 checksum: 869350
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_hppa.deb
Size/MD5 checksum: 1014
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_hppa.deb
Size/MD5 checksum: 693972
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_hppa.deb
Size/MD5 checksum: 4195310

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_i386.deb
Size/MD5 checksum: 2491262
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_i386.deb
Size/MD5 checksum: 526958
http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_i386.deb
Size/MD5 checksum: 32074
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_i386.deb
Size/MD5 checksum: 3583758
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_i386.deb
Size/MD5 checksum: 585400
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_i386.deb
Size/MD5 checksum: 760350

ia64 architecture (Intel ia64)

http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_ia64.deb
Size/MD5 checksum: 51282
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_ia64.deb
Size/MD5 checksum: 1153370
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_ia64.deb
Size/MD5 checksum: 977470
http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_ia64.deb
Size/MD5 checksum: 3364140
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_ia64.deb
Size/MD5 checksum: 4335648
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_ia64.deb
Size/MD5 checksum: 1014

mips architecture (MIPS (Big Endian))

http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_mips.deb
Size/MD5 checksum: 2781044
http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_mips.deb
Size/MD5 checksum: 32222
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_mips.deb
Size/MD5 checksum: 1010
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_mips.deb
Size/MD5 checksum: 693726
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_mips.deb
Size/MD5 checksum: 785736
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_mips.deb
Size/MD5 checksum: 3678816

mipsel architecture (MIPS (Little Endian))

http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_mipsel.deb
Size/MD5 checksum: 784398
http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_mipsel.deb
Size/MD5 checksum: 2729530
http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_mipsel.deb
Size/MD5 checksum: 32336
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_mipsel.deb
Size/MD5 checksum: 3413324
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_mipsel.deb
Size/MD5 checksum: 687108
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_mipsel.deb
Size/MD5 checksum: 1016

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_powerpc.deb
Size/MD5 checksum: 32908
http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_powerpc.deb
Size/MD5 checksum: 2709324
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_powerpc.deb
Size/MD5 checksum: 653286
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_powerpc.deb
Size/MD5 checksum: 3824700
http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_powerpc.deb
Size/MD5 checksum: 1006
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_powerpc.deb
Size/MD5 checksum: 810628

s390 architecture (IBM S/390)

http://security.debian.org/pool/updates/main/p/perl/libperl5.8_5.8.8-7etch2_s390.deb
Size/MD5 checksum: 1012
http://security.debian.org/pool/updates/main/p/perl/perl-debug_5.8.8-7etch2_s390.deb
Size/MD5 checksum: 2796222
http://security.debian.org/pool/updates/main/p/perl/perl-base_5.8.8-7etch2_s390.deb
Size/MD5 checksum: 823028
http://security.debian.org/pool/updates/main/p/perl/perl_5.8.8-7etch2_s390.deb
Size/MD5 checksum: 4099882
http://security.debian.org/pool/updates/main/p/perl/perl-suid_5.8.8-7etch2_s390.deb
Size/MD5 checksum: 33094
http://security.debian.org/pool/updates/main/p/perl/libperl-dev_5.8.8-7etch2_s390.deb
Size/MD5 checksum: 633506

补丁安装方法：

1. 手工安装补丁包：

首先，使用下面的命令来下载补丁软件：
# wget url (url是补丁下载链接地址)

然后，使用下面的命令来安装补丁：
# dpkg -i file.deb (file是相应的补丁名)

2. 使用apt-get自动安装补丁包：

首先，使用下面的命令更新内部数据库：
# apt-get update

然后，使用下面的命令安装更新软件包：
# apt-get upgrade

B. 帮忙说一下集成电路中的各种标语

电源电路、音频电路（含MIC输入部分和DAC音频输出部分）、复位电路等