openssl signature forgery

OpenSSL before 0.9.7, 0.9.7 before 0.9.7k, and 0.9.8 before 0.9.8c, when using an RSA key with exponent 3, removes PKCS-1 padding before generating a hash, which allows remote attackers to forge a PKCS 1 v1.5 signature that is signed by that RSA key and prevents OpenSSL from correctly verifying...

openSUSE 10 Security Update : silc-toolkit (silc-toolkit-5143)

A flaw in processing PKCS1-Messages could lead to a buffer overflow. Remote attackers could exploit that to crash the server. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from openSUSE Security Update silc-toolkit-5143...

CVE-2008-1552

The silcpkcs1decode function in the silccrypt library silcpkcs1.c in Secure Internet Live Conferencing SILC Toolkit before 1.1.7, SILC Client before 1.1.4, and SILC Server before 1.1.2 allows remote attackers to execute arbitrary code via a crafted PKCS1 message, which triggers an integer...

CVE-2008-1552

The silcpkcs1decode function in the silccrypt library silcpkcs1.c in Secure Internet Live Conferencing SILC Toolkit before 1.1.7, SILC Client before 1.1.4, and SILC Server before 1.1.2 allows remote attackers to execute arbitrary code via a crafted PKCS1 message, which triggers an integer...

Integer overflow

The silcpkcs1decode function in the silccrypt library silcpkcs1.c in Secure Internet Live Conferencing SILC Toolkit before 1.1.7, SILC Client before 1.1.4, and SILC Server before 1.1.2 allows remote attackers to execute arbitrary code via a crafted PKCS1 message, which triggers an integer...

CVE-2008-1552

The CVE-2008-1552 issue affects the SILC Toolkit family: the silc_pkcs1_decode function in silccrypt (silcpkcs1.c) enables remote code execution via a crafted PKCS#1 message. Affected products/versions are SILC Toolkit before 1.1.7, SILC Client before 1.1.4, and SILC Server before 1.1.2, indicati...

Fedora 7 : libsilc-1.0.2-6.fc7 (2008-2616)

This update fixes a buffer overflow in PKCS1 message decoding Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional...

SILC server and client buffer overflow

Buffer overflow on PKCS 1 certificates parsing...

SuSE 10 Security Update : mozilla-nss,mozilla-nss-devel (ZYPP Patch Number 2067)

A security problem in the SSL handling of the NSS libraries was found : If an RSA key with exponent 3 is used it may be possible to forge a PKCS verify the certificate if they are not checking for excess data in the RSA exponentiation result of the signature. This bug is tracked by the Mitre CVE ...

openssl security and bug fix update

0.9.7a-43.17.1 - CVE-2007-5135 off by one buffer overflow in SSLgetsharedciphers 309851 0.9.7a-43.17 - use poll when reading random device 236164 - make ssl session ID context matching strict 244436 - openssl utility shouldnt crash on invalid PKCS12 files 245083 - CVE-2007-3108 remove conditional...

openssh security and bug fix update

4.3p2-24 - fixed audit log injection problem CVE-2007-3102 248059 4.3p2-23 - document where the nss certificate and token dbs are looked for 4.3p2-22 - experimental support for PKCS11 tokens through libnss3 183423 4.3p2-21 - fix an information leak in Kerberos password authentication CVE-2006-505...

Ubuntu 5.10 / 6.06 LTS : firefox vulnerabilities (USN-381-1)

USN-351-1 fixed a flaw in the verification of PKCS certificate signatures. Ulrich Kuehn discovered a variant of the original attack which the original fix did not cover. CVE-2006-5462 Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges by trickin...

Ubuntu 5.04 / 5.10 : mozilla vulnerabilities (USN-361-1)

Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges by tricking the user into opening a malicious URL. CVE-2006-2788, CVE-2006-3805, CVE-2006-3806, CVE-2006-3807, CVE-2006-3809, CVE-2006-3811, CVE-2006-4565, CVE-2006-4568, CVE-2006-4571 A bug was...

Ubuntu 6.06 LTS : mozilla-thunderbird vulnerabilities (USN-352-1)

Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges by tricking the user into opening a malicious email containing JavaScript. Please note that JavaScript is disabled by default for emails, and it is not recommended to enable it. CVE-2006-4253,...

Ubuntu 5.10 / 6.06 LTS / 6.10 : mozilla-thunderbird vulnerabilities (USN-382-1)

USN-352-1 fixed a flaw in the verification of PKCS certificate signatures. Ulrich Kuehn discovered a variant of the original attack which the original fix did not cover. CVE-2006-5462 Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges by trickin...

Ubuntu 5.04 / 5.10 / 6.06 LTS : gnutls11, gnutls12 vulnerability (USN-348-1)

The GnuTLS library did not sufficiently check the padding of PKCS 1 v1.5 signatures if the exponent of the public key is 3 which is widely used for CAs. This could be exploited to forge signatures without the need of the secret key. Note that Tenable Network Security has extracted the preceding...

Ubuntu 5.04 / 5.10 / 6.06 LTS : openssl vulnerability (USN-339-1)

Philip Mackenzie, Marius Schilder, Jason Waddle and Ben Laurie of Google Security discovered that the OpenSSL library did not sufficiently check the padding of PKCS 1 v1.5 signatures if the exponent of the public key is 3 which is widely used for CAs. This could be exploited to forge signatures...

RHEL 5 : openssh (RHSA-2007:0540)

Updated openssh packages that fix a security issue and various bugs are now available. This update has been rated as having moderate security impact by the Red Hat Security Response Team. OpenSSH is OpenBSD's SSH Secure SHell protocol implementation. These packages include the core files necessar...

Moderate: Red Hat Security Advisory: openssh security and bug fix update

Updated openssh packages that fix a security issue and various bugs are now available. This update has been rated as having moderate security impact by the Red Hat Security Response Team. OpenSSH is OpenBSD's SSH Secure SHell protocol implementation. These packages include the core files necessar...

Fedora Core 6 : openssh-4.3p2-25.fc6 (2007-715)

Tue Oct 2 2007 Tomas Mraz - 4.3p2-25 - do not fall back on trusted X11 cookies CVE-2007-4752 280471 - Fri Jul 13 2007 Tomas Mraz - 4.3p2-24 - fixed audit log injection problem CVE-2007-3102 248059 - Thu Jun 21 2007 Tomas Mraz - 4.3p2-23 - document where the nss certificate and token dbs are...