csaf_redhat - rhsa-2022

rhsa-2022_1073

Vulnerability from csaf_redhat

Published

2022-03-28 10:00

Modified

2024-12-17 23:00

Summary

Red Hat Security Advisory: openssl security update

Notes

Topic

An update for openssl is now available for Red Hat Enterprise Linux 6 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Details

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library. Security Fix(es): * openssl: Infinite loop in BN_mod_sqrt() reachable when parsing certificates (CVE-2022-0778) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

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          "title": "Vulnerability description"
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          "text": "openssl: Infinite loop in BN_mod_sqrt() reachable when parsing certificates",
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          "text": "While Red Hat initially stated not to be directly affected by this flaw, after further investigation we found that the versions of OpenSSL as shipped in Red Hat Enterprise Linux 6, 7, and 8 are vulnerable to a denial of service attack through malicious Elliptic Curve parameters. During processing of the parameters OpenSSL will call BN_mod_sqrt() with invalid arguments, causing the process to enter an infinite loop. The invalid EC parameters can be provided to OpenSSL through X.509 certificates (used in TLS connections), through public and private keys, through certificate signing requests and other places where applications process Elliptic Curve parameters. The flaw has been rated as having a security impact of Important. A future update will address this issue in Red Hat Enterprise Linux 6, 7 and 8.",
          "title": "Statement"
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "openssl: Infinite loop in BN_mod_sqrt() reachable when parsing certificates"
    }
  ]
}

cve-2022-0778

Vulnerability from cvelistv5

Published

2022-03-15 17:05

Modified

2024-09-17 00:01

Severity ?

Summary

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).

References

▼	URL	Tags
	https://www.openssl.org/news/secadv/20220315.txt
	https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=a466912611aa6cbdf550cd10601390e587451246
	https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=3118eb64934499d93db3230748a452351d1d9a65
	https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=380085481c64de749a6dd25cdf0bcf4360b30f83
	https://www.debian.org/security/2022/dsa-5103	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2022/03/msg00023.html	mailing-list
	https://lists.debian.org/debian-lts-announce/2022/03/msg00024.html	mailing-list
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GDB3GQVJPXJE7X5C5JN6JAA4XUDWD6E6/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/323SNN6ZX7PRJJWP2BUAFLPUAE42XWLZ/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6K3PR542DXWLEFFMFIDMME4CWMHJRMG/	vendor-advisory
	https://www.oracle.com/security-alerts/cpuapr2022.html
	https://security.netapp.com/advisory/ntap-20220321-0002/
	https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0002
	https://www.tenable.com/security/tns-2022-06
	https://www.tenable.com/security/tns-2022-07
	https://www.tenable.com/security/tns-2022-08
	http://seclists.org/fulldisclosure/2022/May/33	mailing-list
	http://seclists.org/fulldisclosure/2022/May/35	mailing-list
	http://seclists.org/fulldisclosure/2022/May/38	mailing-list
	https://www.oracle.com/security-alerts/cpujul2022.html
	https://support.apple.com/kb/HT213257
	https://support.apple.com/kb/HT213256
	https://support.apple.com/kb/HT213255
	https://www.tenable.com/security/tns-2022-09
	https://security.netapp.com/advisory/ntap-20220429-0005/
	http://packetstormsecurity.com/files/167344/OpenSSL-1.0.2-1.1.1-3.0-BN_mod_sqrt-Infinite-Loop.html
	https://cert-portal.siemens.com/productcert/pdf/ssa-712929.pdf
	https://security.gentoo.org/glsa/202210-02	vendor-advisory
	https://security.netapp.com/advisory/ntap-20240621-0006/

Impacted products

Vendor

Product

Version

▼

OpenSSL

Version: Fixed in OpenSSL 3.0.2 (Affected 3.0.0,3.0.1)
Version: Fixed in OpenSSL 1.1.1n (Affected 1.1.1-1.1.1m)
Version: Fixed in OpenSSL 1.0.2zd (Affected 1.0.2-1.0.2zc)

Show details on NVD website

JSON

To clipboard

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            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GDB3GQVJPXJE7X5C5JN6JAA4XUDWD6E6/"
        },
        {
          "name": "FEDORA-2022-9e88b5d8d7",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/323SNN6ZX7PRJJWP2BUAFLPUAE42XWLZ/"
        },
        {
          "name": "FEDORA-2022-8bb51f6901",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6K3PR542DXWLEFFMFIDMME4CWMHJRMG/"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20220321-0002/"
        },
        {
          "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0002"
        },
        {
          "url": "https://www.tenable.com/security/tns-2022-06"
        },
        {
          "url": "https://www.tenable.com/security/tns-2022-07"
        },
        {
          "url": "https://www.tenable.com/security/tns-2022-08"
        },
        {
          "name": "20220516 APPLE-SA-2022-05-16-4 Security Update 2022-004 Catalina",
          "tags": [
            "mailing-list"
          ],
          "url": "http://seclists.org/fulldisclosure/2022/May/33"
        },
        {
          "name": "20220516 APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6",
          "tags": [
            "mailing-list"
          ],
          "url": "http://seclists.org/fulldisclosure/2022/May/35"
        },
        {
          "name": "20220516 APPLE-SA-2022-05-16-2 macOS Monterey 12.4",
          "tags": [
            "mailing-list"
          ],
          "url": "http://seclists.org/fulldisclosure/2022/May/38"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
        },
        {
          "url": "https://support.apple.com/kb/HT213257"
        },
        {
          "url": "https://support.apple.com/kb/HT213256"
        },
        {
          "url": "https://support.apple.com/kb/HT213255"
        },
        {
          "url": "https://www.tenable.com/security/tns-2022-09"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20220429-0005/"
        },
        {
          "url": "http://packetstormsecurity.com/files/167344/OpenSSL-1.0.2-1.1.1-3.0-BN_mod_sqrt-Infinite-Loop.html"
        },
        {
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-712929.pdf"
        },
        {
          "name": "GLSA-202210-02",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202210-02"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240621-0006/"
        }
      ],
      "title": "Infinite loop in BN_mod_sqrt() reachable when parsing certificates"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5",
    "assignerShortName": "openssl",
    "cveId": "CVE-2022-0778",
    "datePublished": "2022-03-15T17:05:20.382533Z",
    "dateReserved": "2022-02-28T00:00:00",
    "dateUpdated": "2024-09-17T00:01:02.190Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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