CVE-2023-4421

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

CVE-2023-4421

CVE-2023-4421 concerns the NSS library’s handling of PKCS#1 v1.5 padding, where timing side-channel leakage exposed information about padding validity and message length. This could enable Bleichenbacher-like attacks, allowing an attacker to decrypt previously intercepted PKCS#1 v1.5 ciphertext (...

CVE-2023-4421

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

Timing side-channel in PKCS#1 v1.5 decryption depadding code — Mozilla

The NSS code used for checking PKCS1 v1.5 was leaking information useful in mounting Bleichenbacher-like attacks. Both the overall correctness of the padding as well as the length of the encrypted message was leaking through timing side-channel. By sending large number of attacker-selected...

Golang < 1.20 Observable Discrepancy

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

Security Bulletin: IBM Flex System switch firmware products are affected by vulnerability in OpenSSL (CVE-2018-0734)

Summary IBM Flex System switch firmware products have addressed the following vulnerability in OpenSSL. Vulnerability Details CVEID: CVE-2018-0734 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a timing side channel attack in the DSA signature...

Security Bulletin: Vulnerabilities in OpenSSL affect GCM16 & GCM32 KVM Switch Firmware (CVE-2018-0734, CVE-2018-0737, CVE-2018-0739)

Summary GCM16 & GCM32 KVM Switch Firmware have addressed the following vulnerabilities in OpenSSL. Vulnerability Details CVEID: CVE-2018-0734 DESCRIPTION: OpenSSL could allow a remote attacker to obtain sensitive information, caused by a timing side channel attack in the DSA signature algorithm. ...

Timing Attack

github.com/golang/go is vulnerable to a Timing Attack. A timing-based side-channel vulnerability allows an attacker to potentially recover session key bits from RSA-based TLS key exchanges by observing the timing discrepancy between processing different inputs. While successful exploitation...

SUSE CVE-2023-45287

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

Oracle Linux 8 : edk2 (ELSA-2023-13025)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-13025 advisory. - Create new 20230821 release for OL8 which includes the following fixed CVEs: CVE-2019-14560 - Update to OpenSSL 1.1.1v which includes the following...

Oracle Linux 9 : edk2 (ELSA-2023-13024)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-13024 advisory. - Create new 20230821 release for OL9 which includes the following fixed CVEs: CVE-2019-14560 - Update to OpenSSL 1.1.1v which includes the following...

CVE-2023-45287

A flaw was found in the Golang crypto/tls standard library. In previous versions, the package was vulnerable to a Timing Side Channel attack by observing the time it took for RSA-based TLS key exchanges, which was not constant. This flaw allows a malicious user to gather information from the...

AZL-37310 CVE-2023-45287 affecting package golang for versions less than 1.21.6-1

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

AZL-32123 CVE-2023-45287 affecting package msft-golang for versions less than 1.20.0-1

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

AZL-79088 CVE-2023-45287 affecting package golang 1.26.5-2

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

DEBIAN-CVE-2023-45287

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

AZL-37380 CVE-2023-45287 affecting package golang for versions less than 1.21.6-1

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

AZL-34764 CVE-2023-45287 affecting package golang for versions less than 1.20.0-1

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

CVE-2023-45287

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...

AZL-32100 CVE-2023-45287 affecting package golang for versions less than 1.20.0-1

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS1 padding may leak timing...