Vulnerability Bulletins |
Salto de validación de certificados en Lasso |
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Vulnerability classification |
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| Property | Value |
| Confidence level | Oficial |
| Impact | Confidencialidad |
| Dificulty | Experto |
| Required attacker level | Acceso remoto sin cuenta a un servicio estandar |
System information |
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| Property | Value |
| Affected manufacturer | GNU/Linux |
| Affected software | Lasso <= 2.2.1 |
Description |
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Se ha descubierto una vulnerabilidad Lasso 2.2.1. La vulnerabilidad reside en un error en la comprobación del valor devuelto por la función "DSA_verify". Un atacante remoto podría saltar la validación de un certificado mediante una firma SSL/TLS especialmente diseñada para claves DSA y ECDSA. |
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Solution |
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Actualización de software Debian (DSA-1700-1) Debian Linux 4.0 Source http://security.debian.org/pool/updates/main/l/lasso/lasso_0.6.5-3+etch1.diff.gz http://security.debian.org/pool/updates/main/l/lasso/lasso_0.6.5.orig.tar.gz http://security.debian.org/pool/updates/main/l/lasso/lasso_0.6.5-3+etch1.dsc alpha (DEC Alpha) http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_alpha.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_alpha.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_alpha.deb http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_alpha.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_alpha.deb amd64 (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_amd64.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_amd64.deb http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_amd64.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_amd64.deb http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_amd64.deb arm (ARM) http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_arm.deb http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_arm.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_arm.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_arm.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_arm.deb hppa (HP PA RISC) http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_hppa.deb http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_hppa.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_hppa.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_hppa.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_hppa.deb i386 (Intel ia32) http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_i386.deb http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_i386.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_i386.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_i386.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_i386.deb ia64 (Intel ia64) http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_ia64.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_ia64.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_ia64.deb http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_ia64.deb http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_ia64.deb mips (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_mips.deb http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_mips.deb http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_mips.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_mips.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_mips.deb mipsel (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_mipsel.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_mipsel.deb http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_mipsel.deb http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_mipsel.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_mipsel.deb powerpc (PowerPC) http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_powerpc.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_powerpc.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_powerpc.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_powerpc.deb http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_powerpc.deb s390 (IBM S/390) http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_s390.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_s390.deb http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_s390.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_s390.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_s390.deb sparc (Sun SPARC/UltraSPARC) http://security.debian.org/pool/updates/main/l/lasso/php4-lasso_0.6.5-3+etch1_sparc.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3_0.6.5-3+etch1_sparc.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso-java_0.6.5-3+etch1_sparc.deb http://security.debian.org/pool/updates/main/l/lasso/liblasso3-dev_0.6.5-3+etch1_sparc.deb http://security.debian.org/pool/updates/main/l/lasso/python-lasso_0.6.5-3+etch1_sparc.deb |
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Standar resources |
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| Property | Value |
| CVE | CVE-2009-0050 |
| BID | |
Other resources |
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Debian Security Advisory (DSA-1700-1) http://lists.debian.org/debian-security-announce/2009/msg00007.html |
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Version history |
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| Version | Comments | Date |
| 1.0 | Aviso emitido | 2009-01-12 |