Java Cryptography Implementation Mistake Allows Digital-Signature Forgeries

Interesting implementation mistake: The vulnerability, which Oracle patched on Tuesday, affects the company’s implementation of the Elliptic Curve Digital Signature Algorithm in Java versions 15 and above. ECDSA is an algorithm that uses the principles of elliptic curve cryptography to authentica...

SUSE-SU-2022:1093-1 Security update for libreoffice

This update for libreoffice fixes the following issues: Update to version 7.2.5.1 jscSLE-18213: - CVE-2021-25636: Fixed an incorrect validation of digitally signed documents bsc1196456...

Security Bulletin: A vulnerability in Java SE affects IBM Control Center (CVE-2020-2773)

Summary Two XML Digital Signature APIs implemented in the XMLDSigRI provider throw unexpected Exception types. An attacker could exploit this to inflict a DoS. The fix ensures that all Exceptions thrown from these APIs are wrapped in instances of javax.xml.crypto.MarshalException. Vulnerability...

SUSE-SU-2022:0886-1 Security update for libreoffice

This update for libreoffice fixes the following issues: Update to version 7.2.5.1 jscSLE-18214: - CVE-2021-25636: Fixed an incorrect vadidation of digitally signed documents bsc1196456...

CVE-2021-43392

STMicroelectronics STSAFE-J 1.1.4, J-SAFE3 1.2.5, and J-SIGN sometimes allow attackers to obtain information on cryptographic secrets. This is associated with the ECDSA signature algorithm on the Java Card J-SAFE3 and STSAFE-J platforms exposing a 3.0.4 Java Card API. It is exploitable for STSAFE...

CVE-2021-25636

LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to...

Critical Flaws Discovered in Cisco Small Business RV Series Routers

Cisco has patched multiple critical security vulnerabilities impacting its RV Series routers that could be weaponized to elevate privileges and execute arbitrary code on affected systems, while also warning of the existence of proof-of-concept PoC exploit code targeting some of these bugs. Three ...

Insecure Signature Validation

thunderbird:sid has insecure signature validation. When receiving an OpenPGP/MIME signed email message that contains an additional outer MIME message layer, for example a message footer added by a mailing list gateway, Thunderbird only considered the inner signed message for the signature validit...

CVE-2021-21874

A specially-crafted HTTP request can lead to arbitrary command execution in DSA keypasswd parameter. An attacker can make an authenticated HTTP request to trigger this vulnerability...

Security Vulnerabilities fixed in Thunderbird 91.4.1 — Mozilla

When receiving an OpenPGP/MIME signed email message that contains an additional outer MIME message layer, for example a message footer added by a mailing list gateway, Thunderbird only considered the inner signed message for the signature validity. This gave the false impression that the addition...

Mozilla Thunderbird < 91.4.1

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 91.4.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-55 advisory. - Thunderbird users who use the Matrix chat protocol were vulnerable to a buffer overflow in libolm, that...

USN-5168-4 nss regression

USN-5168-3 fixed a vulnerability in NSS. Unfortunately that update introduced a regression that could break SSL connections. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Tavis Ormandy discovered that NSS incorrectly handled verifying DSA/RSA-PSS...

nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS)

A remote code execution flaw was found in the way NSS verifies certificates. This flaw allows an attacker posing as an SSL/TLS server to trigger this issue in a client application compiled with NSS when it tries to initiate an SSL/TLS connection. Similarly, a server application compiled with NSS,...

USN-5168-1 nss vulnerability

Tavis Ormandy discovered that NSS incorrectly handled verifying DSA/RSA-PSS signatures. A remote attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly execute arbitrary code...

UBUNTU-CVE-2021-43527

NSS Network Security Services versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS \7, or PKCS \12 are likely to be impacted. Applications using N...

Weak Password Vulnerability in Cyber-Sign's NetSign Digital Signature System

Ltd. is the earliest professional vendor engaged in the research, development and application of PKI technology in China. A weak password vulnerability exists in the NetSign digital signature system, which can be exploited by attackers to obtain sensitive information...

CVE-2021-43572

The verify function in the Stark Bank Python ECDSA library aka starkbank-escada or ecdsa-python before 2.0.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages...

thunderbird: Memory corruption when processing S/MIME messages

A flaw was found in Thunderbird, which is vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS...

thunderbird: Memory corruption when processing S/MIME messages

A flaw was found in Thunderbird, which is vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS...

Researchers Discover Microsoft-Signed FiveSys Rootkit in the Wild

A newly identified rootkit has been found with a valid digital signature issued by Microsoft that's used to proxy traffic to internet addresses of interest to the attackers for over a year targeting online gamers in China. Bucharest-headquartered cybersecurity technology company Bitdefender named...