CVE-2020-15706
Vulnerability from cvelistv5
Published
2020-07-29 17:45
Modified
2024-09-16 22:20
Severity ?
6.4 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
GRUB2 contains a race condition leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing.
References
security@ubuntu.comhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.htmlBroken Link, Mailing List, Third Party Advisory
security@ubuntu.comhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.htmlBroken Link, Mailing List, Third Party Advisory
security@ubuntu.comhttp://ubuntu.com/security/notices/USN-4432-1Third Party Advisory
security@ubuntu.comhttp://www.openwall.com/lists/oss-security/2020/07/29/3Mailing List, Third Party Advisory
security@ubuntu.comhttps://access.redhat.com/security/vulnerabilities/grub2bootloaderThird Party Advisory
security@ubuntu.comhttps://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.htmlIssue Tracking, Vendor Advisory
security@ubuntu.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011Patch, Third Party Advisory, Vendor Advisory
security@ubuntu.comhttps://security.gentoo.org/glsa/202104-05Third Party Advisory
security@ubuntu.comhttps://security.netapp.com/advisory/ntap-20200731-0008/Third Party Advisory
security@ubuntu.comhttps://usn.ubuntu.com/4432-1/Third Party Advisory
security@ubuntu.comhttps://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypassThird Party Advisory
security@ubuntu.comhttps://www.debian.org/security/2020-GRUB-UEFI-SecureBootThird Party Advisory
security@ubuntu.comhttps://www.debian.org/security/2020/dsa-4735Third Party Advisory
security@ubuntu.comhttps://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/Third Party Advisory
security@ubuntu.comhttps://www.openwall.com/lists/oss-security/2020/07/29/3Mailing List, Third Party Advisory
security@ubuntu.comhttps://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/Third Party Advisory
security@ubuntu.comhttps://www.suse.com/support/kb/doc/?id=000019673Third Party Advisory
Impacted products
Ubuntugrub2 in Ubuntu
Show details on NVD website

To clipboard 

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This issue affects GRUB2 version 2.04 and prior versions.\"},{\"lang\":\"es\",\"value\":\"GRUB2 contiene una condici\u00f3n de carrera en la funci\u00f3n grub_script_function_create() que conlleva a una vulnerabilidad de uso de la memoria previamente liberada la cual puede ser desencadenada al redefinir una funci\u00f3n mientras la misma funci\u00f3n ya se est\u00e1 ejecutando, conllevando a una ejecuci\u00f3n de c\u00f3digo arbitrario y a una omisi\u00f3n de restricci\u00f3n de arranque seguro. 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anteriores\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.4,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":0.5,\"impactScore\":5.9},{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.4,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":0.5,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:M/Au:N/C:P/I:P/A:P\",\"accessVector\":\"LOCAL\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":4.4},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.4,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"},{\"lang\":\"en\",\"value\":\"CWE-416\"}]},{\"source\":\"security@ubuntu.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-362\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"2.04\",\"matchCriteriaId\":\"FC3627EF-FE69-44D7-96D5-E40FF30ED38B\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:enterprise_linux_atomic_host:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AF483911-003B-470B-A12B-85EF34A50469\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"932D137F-528B-4526-9A89-CD59FA1AB0FE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"815D70A8-47D3-459C-A32C-9FEACA0659D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*\",\"matchCriteriaId\":\"902B8056-9E37-443B-8905-8AA93E2447FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"142AD0DD-4CF3-4D74-9442-459CE3347E3A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F4CFF558-3C47-480D-A2F0-BABF26042943\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:suse_linux_enterprise_server:11:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"93AD897C-C9F7-4B4D-BC39-5E13920383D4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:suse_linux_enterprise_server:12:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9C649194-B8C2-49F7-A819-C635EE584ABF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:suse:suse_linux_enterprise_server:15:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AF73A3D9-6566-4CBF-AA5F-5A4B99719A1D\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"21540673-614A-4D40-8BD7-3F07723803B0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E01A4CCA-4C43-46E0-90E6-3E4DBFBACD64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"83B14968-3985-43C3-ACE5-8307196EFAE3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7CB85C75-4D35-480E-843D-60579EC75FCB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6B8F3DD2-A145-4AF1-8545-CC42892DA3D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:*\"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Advisory\"]},{\"url\":\"https://www.debian.org/security/2020/dsa-4735\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.openwall.com/lists/oss-security/2020/07/29/3\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://www.suse.com/support/kb/doc/?id=000019673\",\"source\":\"security@ubuntu.com\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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Sightings

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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.
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