Executive Summary

Informations
Name CVE-2022-0778 First vendor Publication 2022-03-15
Vendor Cve Last vendor Modification 2022-11-09

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0778

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 161
Application 1
Application 1
Application 1
Application 1
Application 1
Application 212
Application 409
Application 97
Os 3
Os 2

Sources (Detail)

Source Url
CONFIRM https://cert-portal.siemens.com/productcert/pdf/ssa-712929.pdf
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=3118eb64934499d9...
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=380085481c64de74...
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=a466912611aa6cbd...
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0002
https://security.netapp.com/advisory/ntap-20220321-0002/
https://security.netapp.com/advisory/ntap-20220429-0005/
https://support.apple.com/kb/HT213255
https://support.apple.com/kb/HT213256
https://support.apple.com/kb/HT213257
https://www.openssl.org/news/secadv/20220315.txt
https://www.tenable.com/security/tns-2022-06
https://www.tenable.com/security/tns-2022-07
https://www.tenable.com/security/tns-2022-08
https://www.tenable.com/security/tns-2022-09
DEBIAN https://www.debian.org/security/2022/dsa-5103
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
FULLDISC http://seclists.org/fulldisclosure/2022/May/33
http://seclists.org/fulldisclosure/2022/May/35
http://seclists.org/fulldisclosure/2022/May/38
GENTOO https://security.gentoo.org/glsa/202210-02
MISC http://packetstormsecurity.com/files/167344/OpenSSL-1.0.2-1.1.1-3.0-BN_mod_sq...
https://www.oracle.com/security-alerts/cpuapr2022.html
MLIST https://lists.debian.org/debian-lts-announce/2022/03/msg00023.html
https://lists.debian.org/debian-lts-announce/2022/03/msg00024.html
N/A https://www.oracle.com/security-alerts/cpujul2022.html

Alert History

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Date Informations
2022-11-10 00:27:32
  • Multiple Updates
2022-10-16 21:27:19
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2022-10-11 13:11:07
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2022-10-11 01:24:00
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2022-08-30 02:11:11
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2022-08-30 00:27:26
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2022-07-26 00:29:37
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2022-07-19 00:27:27
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2022-06-14 17:27:25
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2022-06-02 21:27:22
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2022-05-17 13:27:24
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2022-05-17 00:27:23
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2022-04-29 21:23:05
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2022-04-21 02:00:42
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2022-04-21 01:59:33
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2022-04-21 00:23:06
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2022-04-20 09:23:03
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2022-04-07 00:23:03
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2022-04-05 09:23:02
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2022-04-03 09:22:57
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2022-04-01 05:23:20
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2022-03-31 05:23:07
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2022-03-30 21:23:06
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2022-03-23 01:57:45
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2022-03-23 01:57:02
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2022-03-22 13:22:54
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2022-03-22 12:50:37
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2022-03-21 21:22:54
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2022-03-21 17:22:52
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2022-03-17 17:23:03
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2022-03-16 13:22:52
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2022-03-15 21:22:53
  • First insertion