The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. It is possible to trigger the infinite loop by crafting a certificate that has invalid explicit curve parameters. Since certificate parsing happens prior to verification of the certificate signature, any process that parses an externally supplied certificate may thus be subject to a denial of service attack. The infinite loop can also be reached when parsing crafted private keys as they can contain explicit elliptic curve parameters. Thus vulnerable situations include: - TLS clients consuming server certificates - TLS servers consuming client certificates - Hosting providers taking certificates or private keys from customers - Certificate authorities p…

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j).

Curve.IsOnCurve in crypto/elliptic in Go before 1.16.14 and 1.17.x before 1.17.7 can incorrectly return true in situations with a big.Int value that is not a valid field element.

Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.

In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed.

StorageGRID (formerly StorageGRID Webscale) versions prior to 11.9 are susceptible to a Denial of Service (DoS) vulnerability. Successful exploit by an authenticated attacker could lead to a service crash.

StorageGRID (formerly StorageGRID Webscale) versions prior to 11.7.0.9 and 11.8.0.5 are susceptible to disclosure of sensitive information via complex MiTM attacks due to a vulnerability in the SSH cryptographic implementation.

StorageGRID (formerly StorageGRID Webscale) versions prior to 11.8 are susceptible to a difficult to exploit Reflected Cross-Site Scripting (XSS) vulnerability. Successful exploit requires the attacker to know specific information about the target instance and trick a privileged user into clicking a specially crafted link. This could allow the attacker to view or modify configuration settings or add or modify user accounts.

StorageGRID (formerly StorageGRID Webscale) versions prior to 11.8 are susceptible to a Denial of Service (DoS) vulnerability. Successful exploit by an authenticated attacker could lead to an out of memory condition or node reboot.