gsd-2019-1549
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).
Aliases
Aliases
{ "GSD": { "alias": "CVE-2019-1549", "description": "OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).", "id": "GSD-2019-1549", "references": [ "https://www.suse.com/security/cve/CVE-2019-1549.html", "https://www.debian.org/security/2019/dsa-4539", "https://access.redhat.com/errata/RHSA-2020:1840", "https://access.redhat.com/errata/RHSA-2020:1337", "https://access.redhat.com/errata/RHSA-2020:1336", "https://ubuntu.com/security/CVE-2019-1549", "https://linux.oracle.com/cve/CVE-2019-1549.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2019-1549" ], "details": "OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).", "id": "GSD-2019-1549", "modified": "2023-12-13T01:23:51.072317Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "openssl-security@openssl.org", "DATE_PUBLIC": "2019-09-10", "ID": "CVE-2019-1549", "STATE": "PUBLIC", "TITLE": "Fork Protection" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "OpenSSL", "version": { "version_data": [ { "version_value": "Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c)" } ] } } ] }, "vendor_name": "OpenSSL" } ] } }, "credit": [ { "lang": "eng", "value": "Matt Caswell" } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c)." } ] }, "impact": [ { "lang": "eng", "url": "https://www.openssl.org/policies/secpolicy.html#Low", "value": "Low" } ], "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Random Number Generation" } ] } ] }, "references": { "reference_data": [ { "name": "FEDORA-2019-d15aac6c4e", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/" }, { "name": "FEDORA-2019-d51641f152", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/" }, { "name": "20191001 [SECURITY] [DSA 4539-1] openssl security update", "refsource": "BUGTRAQ", "url": "https://seclists.org/bugtraq/2019/Oct/1" }, { "name": "DSA-4539", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2019/dsa-4539" }, { "name": "USN-4376-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4376-1/" }, { "name": "https://www.oracle.com/security-alerts/cpuapr2020.html", "refsource": "MISC", "url": "https://www.oracle.com/security-alerts/cpuapr2020.html" }, { "name": "https://www.oracle.com/security-alerts/cpujul2020.html", "refsource": "MISC", "url": "https://www.oracle.com/security-alerts/cpujul2020.html" }, { "name": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html", "refsource": "MISC", "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html" }, { "name": "https://www.oracle.com/security-alerts/cpujan2020.html", "refsource": "MISC", "url": "https://www.oracle.com/security-alerts/cpujan2020.html" }, { "name": "https://www.openssl.org/news/secadv/20190910.txt", "refsource": "CONFIRM", "url": "https://www.openssl.org/news/secadv/20190910.txt" }, { "name": "https://security.netapp.com/advisory/ntap-20190919-0002/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20190919-0002/" }, { "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be", "refsource": "CONFIRM", "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be" }, { "name": "https://support.f5.com/csp/article/K44070243", "refsource": "CONFIRM", "url": "https://support.f5.com/csp/article/K44070243" }, { "name": "https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp;utm_medium=RSS", "refsource": "CONFIRM", "url": "https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp;utm_medium=RSS" }, { "name": "https://www.oracle.com/security-alerts/cpuoct2020.html", "refsource": "MISC", "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndIncluding": "1.1.1c", "versionStartIncluding": "1.1.1", "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "openssl-security@openssl.org", "ID": "CVE-2019-1549" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c)." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-330" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be", "refsource": "CONFIRM", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ], "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=1b0fe00e2704b5e20334a16d3c9099d1ba2ef1be" }, { "name": "https://www.openssl.org/news/secadv/20190910.txt", "refsource": "CONFIRM", "tags": [ "Vendor Advisory" ], "url": "https://www.openssl.org/news/secadv/20190910.txt" }, { "name": "https://security.netapp.com/advisory/ntap-20190919-0002/", "refsource": "CONFIRM", "tags": [], "url": "https://security.netapp.com/advisory/ntap-20190919-0002/" }, { "name": "https://support.f5.com/csp/article/K44070243", "refsource": "CONFIRM", "tags": [], "url": "https://support.f5.com/csp/article/K44070243" }, { "name": "FEDORA-2019-d15aac6c4e", "refsource": "FEDORA", "tags": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GY6SNRJP2S7Y42GIIDO3HXPNMDYN2U3A/" }, { "name": "FEDORA-2019-d51641f152", "refsource": "FEDORA", "tags": [], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZN4VVQJ3JDCHGIHV4Y2YTXBYQZ6PWQ7E/" }, { "name": "20191001 [SECURITY] [DSA 4539-1] openssl security update", "refsource": "BUGTRAQ", "tags": [], "url": "https://seclists.org/bugtraq/2019/Oct/1" }, { "name": "DSA-4539", "refsource": "DEBIAN", "tags": [], "url": "https://www.debian.org/security/2019/dsa-4539" }, { "name": "https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp;utm_medium=RSS", "refsource": "CONFIRM", "tags": [], "url": "https://support.f5.com/csp/article/K44070243?utm_source=f5support\u0026amp;utm_medium=RSS" }, { "name": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html", "refsource": "MISC", "tags": [], "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html" }, { "name": "https://www.oracle.com/security-alerts/cpujan2020.html", "refsource": "MISC", "tags": [], "url": "https://www.oracle.com/security-alerts/cpujan2020.html" }, { "name": "N/A", "refsource": "N/A", "tags": [], "url": "https://www.oracle.com/security-alerts/cpuapr2020.html" }, { "name": "USN-4376-1", "refsource": "UBUNTU", "tags": [], "url": "https://usn.ubuntu.com/4376-1/" }, { "name": "https://www.oracle.com/security-alerts/cpujul2020.html", "refsource": "MISC", "tags": [], "url": "https://www.oracle.com/security-alerts/cpujul2020.html" }, { "name": "https://www.oracle.com/security-alerts/cpuoct2020.html", "refsource": "MISC", "tags": [], "url": "https://www.oracle.com/security-alerts/cpuoct2020.html" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 1.4 } }, "lastModifiedDate": "2020-10-20T22:15Z", "publishedDate": "2019-09-10T17:15Z" } } }
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- 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.
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- 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.