Astra Linux – Vulnerability in libtasn1-6

A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even cause the system to crash. This flaw allows an attacker to send a specially crafted...

Astra Linux – Vulnerability in Golang-1.19

Verifying a certificate chain that contains a certificate with an unknown public key algorithm will cause Certificate.Verify to panic. This affects all crypto/TLS clients, as well as servers that have Config.ClientAuth set to VerifyClientCertIfGiven or RequireAndVerifyClientCert. The default...

Astra Linux – Vulnerability in pam-pkcs11

PAM-PKCS11 is a Linux-PAM login module that enables user login using X.509 certificates. Prior to version 0.6.13, if certpolicy was set to none the default value, then pampkcs11 would only check whether the user was capable of logging into the token. An attacker could create a new token using the...

Astra Linux – Vulnerability in LibreOffice

LibreOffice supports digital signatures for ODF documents and macros within documents. It provides visual aids to indicate that the document has not been altered since the last signature, and that the signature is valid. A vulnerability in certificate validation in LibreOffice allowed attackers t...

Astra Linux – Vulnerability in Firefox and Thunderbird

The error page for sites with invalid TLS certificates lacked the activation-delay feature provided by Firefox to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page triggered user clicks at specific locations immediately before...

Astra Linux – Vulnerability in PostgresSQL 11

A man-in-the-middle attacker can inject false responses to the client’s first few queries, despite the use of SSL certificate verification and encryption...

Astra Linux – Vulnerability in libgit2

libgit2 is a cross-platform, linkable library implementation of Git. When using an SSH remote with the optional libssh2 backend, libgit2 does not perform certificate checking by default. Previous versions of libgit2 required the caller to set the certificatecheck field of the libgit2’s...

Astra Linux – Vulnerability in openconnect

OpenConnect 8.09 has a buffer overflow issue, which can lead to a denial of service application crash or potentially cause unspecified other problems, due to the use of crafted certificate data in the getcertname function within gnutls.c...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in gnutls. When validating certificates, an excessively large Subject Alternative Name SAN could cause the validation process to incorrectly revert to checking the Common Name CN field. This could allow a remote attacker to bypass proper certificate validation, potentially...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier URI or Service SRV Subject Alternative Names SANs. This could cause the certificate validation process to incorrectly fall ba...

Astra Linux – Vulnerability in Chromium

Insufficient validation of untrusted input in the Certificate component in Google Chrome on Linux before version 150.0.7871.182 allowed an attacker in a privileged network position to perform domain spoofing through malicious network traffic. Chromium security severity: High...

Astra Linux – Vulnerability in openconnect

OpenConnect through version 8.08 mishandles negative return values from X509check function calls, which may assist attackers in performing man-in-the-middle attacks...

Astra Linux – Vulnerability in Firefox, Thunderbird

If a PAC URL was set, and the server hosting the PAC was unreachable, OCSP requests would be blocked, resulting in incorrect error pages being displayed. This vulnerability affects Firefox 102, Firefox ESR 91.11, Thunderbird 102, and Thunderbird 91.11...

Astra Linux – Vulnerability in python-urllib3

The urllib3 library before version 1.24.2 in Python mishandles certain cases where the desired set of CA certificates differs from the CA certificates stored in the operating system’s store. As a result, SSL connections succeed in situations where a verification failure would be the correct...

Astra Linux – Vulnerability in LibreOffice

There was an improper certificate validation vulnerability in LibreOffice, where the determination of whether a macro was signed by a trusted author was based solely on comparing the serial number and issuer string of the used certificate with those of a trusted certificate. This is insufficient ...

Astra Linux – Vulnerability in Tomcat9

Improper input validation vulnerability. This issue affects Apache Tomcat: versions 11.0.0-M1 through 11.0.14, 10.1.0-M1 through 10.1.49, and 9.0.0-M1 through 9.0.112. The following versions were at the end of their support lifecycles at the time the CVE was created, but are still affected: 8.5.0...

Astra Linux – Vulnerability in curl

libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse, if one of them matches the setup. Due to errors in the logic, the config matching function did not take ‘issuercert’ into account, and it compared the involved paths case insensitively, which could...

Astra Linux – Vulnerability in Apache2

An integer overflow occurs when attempting to renew an ACME certificate. After several attempts approximately 30 days under default configurations, the backoff timer becomes 0. Subsequent attempts to renew the certificate are repeated without delay until success is achieved. This issue affects th...

Improper Certificate Revocation Checking

mwiede jsch is vulnerable to improper certificate revocation checking. The vulnerability is due to improper validation of revoked keys in the getRevokedKeys function of KnownHosts.java, which allows a remote attacker to bypass certificate revocation checks by manipulating the knownhosts argument...

CVE-2026-105301

A flaw was found in the X.509 client-certificate authenticator of Keycloak, a solution for identity and access management. The issue occurs when the server is configured to check certificate revocation using CRL Distribution Points or OCSP. An attacker can provide a specially crafted certificate...