CVE-2022-0778

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>linux-c7-openssl-devel</name>
	<range><lt>1.0.2zd</lt></range>
      </package>
      <package>
	<name>openssl-unsafe</name>
	<range><lt>1.0.2zd</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>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 parsing
	certification requests from subscribers - Anything else which parses
	ASN.1 elliptic curve parameters Also any other applications that use
	the BN_mod_sqrt() where the attacker can control the parameter values
	are vulnerable to this DoS issue. In the OpenSSL 1.0.2 version the
	public key is not parsed during initial parsing of the certificate
	which makes it slightly harder to trigger the infinite loop. However
	any operation which requires the public key from the certificate will
	trigger the infinite loop. In particular the attacker can use a
	self-signed certificate to trigger the loop during verification of the
	certificate signature. This issue affects OpenSSL versions 1.0.2,
	1.1.1 and 3.0. It was addressed in the releases of 1.1.1n and 3.0.2 on
	the 15th March 2022. Fixed in OpenSSL 3.0.2 (Affected 3.0.0,3.0.1).
	Fixed in OpenSSL 1.1.1n (Affected 1.1.1-1.1.1m). Fixed in OpenSSL
	1.0.2zd (Affected 1.0.2-1.0.2zc).</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2022-0778</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2022-0778</url>
    </references>
    <dates>
      <discovery>2022-03-15</discovery>
      <entry>2026-10-25</entry>
    </dates>
  </vuln>