GLSA-200609-18 : Opera: RSA signature forgery

The remote host is affected by the vulnerability described in GLSA-200609-18 Opera: RSA signature forgery Opera makes use of OpenSSL, which fails to correctly verify PKCS 1 v1.5 RSA signatures signed by a key with exponent 3. Some CAs in Opera's list of trusted signers are using root certificates...

GLSA-200609-15 : GnuTLS: RSA Signature Forgery

The remote host is affected by the vulnerability described in GLSA-200609-15 GnuTLS: RSA Signature Forgery verify.c fails to properly handle excess data in digestAlgorithm.parameters field while generating a hash when using an RSA key with exponent 3. RSA keys that use exponent 3 are commonplace...

USN-352-1: Thunderbird vulnerabilities

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,...

USN-351-1: firefox vulnerabilities

Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges by tricking the user into opening a malicious web page containing JavaScript. CVE-2006-4253, CVE-2006-4565, CVE-2006-4566, CVE-2006-4568, CVE-2006-4569 CVE-2006-4571 The NSS library did not...

USN-350-1: Thunderbird vulnerabilities

This update upgrades Thunderbird from 1.0.8 to 1.5.0.7. This step was necessary since the 1.0.x series is not supported by upstream any more. 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...

USN-348-1: GnuTLS vulnerability

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...

[USN-348-1] GnuTLS vulnerability

=========================================================== Ubuntu Security Notice USN-348-1 September 18, 2006 gnutls11, gnutls12 vulnerability CVE-2006-4790 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 5.04 Ubuntu 5.1...

RHEL 4 : gnutls (RHSA-2006:0680)

Updated gnutls packages that fix a security issue are now available for Red Hat Enterprise Linux 4. This update has been rated as having important security impact by the Red Hat Security Response Team. The GnuTLS Library provides support for cryptographic algorithms and protocols such as TLS...

CVE-2006-4790

verify.c in GnuTLS before 1.4.4, when using an RSA key with exponent 3, does not properly handle excess data in the digestAlgorithm.parameters field when generating a hash, which allows remote attackers to forge a PKCS 1 v1.5 signature that is signed by that RSA key and prevents GnuTLS from...

CVE-2006-4790

verify.c in GnuTLS before 1.4.4, when using an RSA key with exponent 3, does not properly handle excess data in the digestAlgorithm.parameters field when generating a hash, which allows remote attackers to forge a PKCS 1 v1.5 signature that is signed by that RSA key and prevents GnuTLS from...

CVE-2006-4790

verify.c in GnuTLS before 1.4.4, when using an RSA key with exponent 3, does not properly handle excess data in the digestAlgorithm.parameters field when generating a hash, which allows remote attackers to forge a PKCS 1 v1.5 signature that is signed by that RSA key and prevents GnuTLS from...

gnutls security update

CentOS Errata and Security Advisory CESA-2006:0680 Updated gnutls packages that fix a security issue are now available for Red Hat Enterprise Linux 4. This update has been rated as having important security impact by the Red Hat Security Response Team. The GnuTLS Library provides support for...

Important: Red Hat Security Advisory: gnutls security update

Updated gnutls packages that fix a security issue are now available for Red Hat Enterprise Linux 4. This update has been rated as having important security impact by the Red Hat Security Response Team. The GnuTLS Library provides support for cryptographic algorithms and protocols such as TLS...

RHEL 2.1 / 3 / 4 : openssl (RHSA-2006:0661)

Updated OpenSSL packages are now available to correct a security issue. This update has been rated as having important security impact by the Red Hat Security Response Team. The OpenSSL toolkit provides support for secure communications between machines. OpenSSL includes a certificate management...

CentOS 3 / 4 : openssl (CESA-2006:0661)

Updated OpenSSL packages are now available to correct a security issue. This update has been rated as having important security impact by the Red Hat Security Response Team. The OpenSSL toolkit provides support for secure communications between machines. OpenSSL includes a certificate management...

openssl, openssl095a, openssl096 security update

CentOS Errata and Security Advisory CESA-2006:0661-01 Updated OpenSSL packages are now available to correct a security issue. This update has been rated as having important security impact by the Red Hat Security Response Team. The OpenSSL toolkit provides support for secure communications betwee...

Multiple RSA implementations fail to properly handle signatures

Overview Multiple RSA implementations fail to properly handle RSA signatures. This vulnerability may allow an attacker to forge RSA signatures. Description RSA signatures are used to authenticate the source of a message. To prevent RSA signatures from being forged, messages are padded with data t...

openssl, openssl096b security update

CentOS Errata and Security Advisory CESA-2006:0661 Updated OpenSSL packages are now available to correct a security issue. This update has been rated as having important security impact by the Red Hat Security Response Team. The OpenSSL toolkit provides support for secure communications between...

Important: Red Hat Security Advisory: openssl security update

Updated OpenSSL packages are now available to correct a security issue. This update has been rated as having important security impact by the Red Hat Security Response Team. The OpenSSL toolkit provides support for secure communications between machines. OpenSSL includes a certificate management...

openssl -- Incorrect PKCS#1 v1.5 padding validation in crypto(3)

Problem Description When verifying a PKCS1 v1.5 signature, OpenSSL ignores any bytes which follow the cryptographic hash being signed. In a valid signature there will be no such bytes. Impact OpenSSL will incorrectly report some invalid signatures as valid. When an RSA public exponent of 3 is use...