int(2040)

Boletines de Vulnerabilidades


Desbordamiento de búfer en libcurl / curl

Clasificación de la vulnerabilidad

Propiedad Valor
Nivel de Confianza Oficial
Impacto Obtener acceso
Dificultad Experto
Requerimientos del atacante Acceso remoto sin cuenta a un servicio exotico

Información sobre el sistema

Propiedad Valor
Fabricante afectado GNU/Linux
Software afectado libcurl / curl 7.11.2-7.15.0

Descripción

Se ha descubierto una vulnerabilidad en libcurl y curl desde la versión 7.11.2 hasta la 7.15.0. La vulnerabilidad reside en la función de manejo de URL que desborda un búfer.

Un atacante local podría elevar privilegios o saltarse los mecanismos de protección del modo seguro de PHP (safe_mode/ open_basedir). También existe la posibilidad de que un atacante remoto puediera ejecutar código arbitrario aunque es improbable ya que el ataque no puede ser lanzado por redirecciones HTTP.

Solución



Actualización de software

Mandriva

Mandrakelinux 10.1
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/curl-7.12.1-1.3.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/libcurl3-7.12.1-1.3.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/libcurl3-devel-7.12.1-1.3.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/SRPMS/curl-7.12.1-1.3.101mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/curl-7.12.1-1.3.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/lib64curl3-7.12.1-1.3.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/lib64curl3-devel-7.12.1-1.3.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/SRPMS/curl-7.12.1-1.3.101mdk.src.rpm

Mandrivalinux LE2005
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/curl-7.13.1-2.2.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/libcurl3-7.13.1-2.2.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/libcurl3-devel-7.13.1-2.2.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/SRPMS/curl-7.13.1-2.2.102mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/curl-7.13.1-2.2.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/lib64curl3-7.13.1-2.2.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/lib64curl3-devel-7.13.1-2.2.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/SRPMS/curl-7.13.1-2.2.102mdk.src.rpm

Mandrivalinux 2006
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/curl-7.14.0-2.2.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/libcurl3-7.14.0-2.2.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/libcurl3-devel-7.14.0-2.2.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/php-curl-5.0.4-1.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/SRPMS/curl-7.14.0-2.2.20060mdk.src.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/SRPMS/php-curl-5.0.4-1.1.20060mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/curl-7.14.0-2.2.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/lib64curl3-7.14.0-2.2.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/lib64curl3-devel-7.14.0-2.2.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/php-curl-5.0.4-1.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/SRPMS/curl-7.14.0-2.2.20060mdk.src.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/SRPMS/php-curl-5.0.4-1.1.20060mdk.src.rpm

Debian

Debian Linux 3.0
Source
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2.dsc
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2.diff.gz
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5.orig.tar.gz
Alpha
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_alpha.deb
ARM
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_arm.deb
Intel IA-32
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_i386.deb
Intel IA-64
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_ia64.deb
HP Precision
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_hppa.deb
Motorola 680x0
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_m68k.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_m68k.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_m68k.deb
Big endian MIPS
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_mips.deb
Little endian MIPS
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_mipsel.deb
PowerPC
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_powerpc.deb
IBM S/390
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_s390.deb
Sun Sparc
http://security.debian.org/pool/updates/main/c/curl/curl_7.9.5-1woody2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl-dev_7.9.5-1woody2_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl2_7.9.5-1woody2_sparc.deb

Debian Linux 3.1
Source
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5.dsc
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5.diff.gz
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2.orig.tar.gz
Alpha
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_alpha.deb
AMD64
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_amd64.deb
ARM
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_arm.deb
Intel IA-32
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_i386.deb
Intel IA-64
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_ia64.deb
HP Precision
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_hppa.deb
Motorola 680x0
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_m68k.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_m68k.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_m68k.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_m68k.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_m68k.deb
Big endian MIPS
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_mips.deb
Little endian MIPS
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_mipsel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_mipsel.deb
PowerPC
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_powerpc.deb
IBM S/390
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_s390.deb
Sun Sparc
http://security.debian.org/pool/updates/main/c/curl/curl_7.13.2-2sarge5_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.13.2-2sarge5_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.13.2-2sarge5_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.13.2-2sarge5_sparc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gssapi_7.13.2-2sarge5_sparc.deb

Red Hat Linux (curl)
Red Hat Desktop (v. 4)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux WS (v. 4)
https://rhn.redhat.com/

SCO
UnixWare 7.1.4
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2006.16

Apple
Mac OS X 10.4.6 Client (PPC)
http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty1.pl/product=10484&cat=1&platform=osx&method=sa/SecUpd2006-003Ti.dmg
Mac OS X 10.4.6 Client (Intel)
http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty1.pl/product=10485&cat=1&platform=osx&method=sa/SecUpd2006-003Intel.dmg
Mac OS X 10.3.9 Client
http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty1.pl/product=10486&cat=1&platform=osx&method=sa/SecUpd2006-003Pan.dmg
Mac OS X 10.4.6 Server
http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty1.pl/product=10487&cat=1&platform=osx&method=sa/SecUpdSrvr2006-003Ti.dmg
Mac OS X 10.3.9 Server
http://wsidecar.apple.com/cgi-bin/nph-reg3rdpty1.pl/product=10488&cat=1&platform=osx&method=sa/SecUpdSrvr2006-003Pan.dmg

Identificadores estándar

Propiedad Valor
CVE CVE-2005-4077
BID

Recursos adicionales

cURL Security Advisory
http://curl.haxx.se/docs/adv_20051207.html

Mandriva Security Advisory (MDKSA-2005:224)
http://www.mandriva.com/security/advisories?name=MDKSA-2005:224

Debian Security Advisory (DSA 919-2)
http://lists.debian.org/debian-security-announce/debian-security-announce-2006/msg00069.html

Red Hat Security Advisory RHSA-2005:875-4
https://rhn.redhat.com/errata/RHSA-2005-875.html

SCO Security Advisory (SCOSA-2006.16)
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2006.16/SCOSA-2006.16.txt

Apple Security Update (2006-003)
http://docs.info.apple.com/article.html?artnum=303737

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2005-12-13
1.1 Aviso emitido por Red Hat (RHSA-2005:875-4) 2005-12-21
1.2 Aviso actualizado por Debian (DSA 919-2) 2006-03-10
1.3 Aviso emitido por SCO (SCOSA-2006.16) 2006-03-31
1.4 Aviso emitido por Apple (2006-003) 2006-05-12

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT