gsd-2020-25668
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.
Aliases
Aliases
{ GSD: { alias: "CVE-2020-25668", description: "A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.", id: "GSD-2020-25668", references: [ "https://www.suse.com/security/cve/CVE-2020-25668.html", "https://ubuntu.com/security/CVE-2020-25668", "https://advisories.mageia.org/CVE-2020-25668.html", "https://alas.aws.amazon.com/cve/html/CVE-2020-25668.html", "https://linux.oracle.com/cve/CVE-2020-25668.html", ], }, gsd: { metadata: { exploitCode: "unknown", remediation: "unknown", reportConfidence: "confirmed", type: "vulnerability", }, osvSchema: { aliases: [ "CVE-2020-25668", ], details: "A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.", id: "GSD-2020-25668", modified: "2023-12-13T01:21:56.730884Z", schema_version: "1.4.0", }, }, namespaces: { "cve.org": { CVE_data_meta: { ASSIGNER: "secalert@redhat.com", ID: "CVE-2020-25668", STATE: "PUBLIC", }, affects: { vendor: { vendor_data: [ { product: { product_data: [ { product_name: "Linux Kernel", version: { version_data: [ { version_value: "5.9.2", }, ], }, }, ], }, vendor_name: "n/a", }, ], }, }, data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "eng", value: "A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.", }, ], }, problemtype: { problemtype_data: [ { description: [ { lang: "eng", value: "CWE-362 -> CWE-416", }, ], }, ], }, references: { reference_data: [ { name: "[oss-security] 20201030 CVE-2020-25668: Linux kernel concurrency use-after-free in vt", refsource: "MLIST", url: "http://www.openwall.com/lists/oss-security/2020/10/30/1", }, { name: "[oss-security] 20201104 Re: CVE-2020-25668: Linux kernel concurrency use-after-free in vt", refsource: "MLIST", url: "http://www.openwall.com/lists/oss-security/2020/11/04/3", }, { name: "[debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security update", refsource: "MLIST", url: "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html", }, { name: "[debian-lts-announce] 20201218 [SECURITY] [DLA 2494-1] linux security update", refsource: "MLIST", url: "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html", }, { name: "https://www.openwall.com/lists/oss-security/2020/11/04/3,", refsource: "MISC", url: "https://www.openwall.com/lists/oss-security/2020/11/04/3,", }, { name: "https://www.openwall.com/lists/oss-security/2020/10/30/1,", refsource: "MISC", url: "https://www.openwall.com/lists/oss-security/2020/10/30/1,", }, { name: "https://bugzilla.redhat.com/show_bug.cgi?id=1893287,", refsource: "MISC", url: "https://bugzilla.redhat.com/show_bug.cgi?id=1893287,", }, { name: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220", refsource: "MISC", url: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220", }, { name: "https://security.netapp.com/advisory/ntap-20210702-0005/", refsource: "CONFIRM", url: "https://security.netapp.com/advisory/ntap-20210702-0005/", }, ], }, }, "nvd.nist.gov": { configurations: { CVE_data_version: "4.0", nodes: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "5.9.5", versionStartIncluding: "5.5", vulnerable: true, }, { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "5.4.75", versionStartIncluding: "4.20", vulnerable: true, }, { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "4.19.155", versionStartIncluding: "4.15", vulnerable: true, }, { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "4.14.204", versionStartIncluding: "4.10", vulnerable: true, }, { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "4.9.242", versionStartIncluding: "4.5", vulnerable: true, }, { cpe23Uri: "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", cpe_name: [], versionEndExcluding: "4.4.242", vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, { cpe23Uri: "cpe:2.3:a:netapp:solidfire_\\&_hci_management_node:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:a250:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, { children: [ { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: true, }, ], operator: "OR", }, { children: [], cpe_match: [ { cpe23Uri: "cpe:2.3:h:netapp:500f:-:*:*:*:*:*:*:*", cpe_name: [], vulnerable: false, }, ], operator: "OR", }, ], cpe_match: [], operator: "AND", }, ], }, cve: { CVE_data_meta: { ASSIGNER: "secalert@redhat.com", ID: "CVE-2020-25668", }, data_format: "MITRE", data_type: "CVE", data_version: "4.0", description: { description_data: [ { lang: "en", value: "A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.", }, ], }, problemtype: { problemtype_data: [ { description: [ { lang: "en", value: "CWE-662", }, ], }, ], }, references: { reference_data: [ { name: "[debian-lts-announce] 20201218 [SECURITY] [DLA 2494-1] linux security update", refsource: "MLIST", tags: [ "Mailing List", "Third Party Advisory", ], url: "https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html", }, { name: "[debian-lts-announce] 20201210 [SECURITY] [DLA 2483-1] linux-4.19 security update", refsource: "MLIST", tags: [ "Mailing List", "Third Party Advisory", ], url: "https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html", }, { name: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220", refsource: "MISC", tags: [ "Mailing List", "Patch", "Third Party Advisory", ], url: "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220", }, { name: "https://www.openwall.com/lists/oss-security/2020/10/30/1,", refsource: "MISC", tags: [ "Exploit", "Mailing List", "Patch", "Third Party Advisory", ], url: "https://www.openwall.com/lists/oss-security/2020/10/30/1,", }, { name: "[oss-security] 20201104 Re: CVE-2020-25668: Linux kernel concurrency use-after-free in vt", refsource: "MLIST", tags: [ "Exploit", "Mailing List", "Patch", "Third Party Advisory", ], url: "http://www.openwall.com/lists/oss-security/2020/11/04/3", }, { name: "https://bugzilla.redhat.com/show_bug.cgi?id=1893287,", refsource: "MISC", tags: [ "Broken Link", "Issue Tracking", ], url: "https://bugzilla.redhat.com/show_bug.cgi?id=1893287,", }, { name: "[oss-security] 20201030 CVE-2020-25668: Linux kernel concurrency use-after-free in vt", refsource: "MLIST", tags: [ "Exploit", "Mailing List", "Patch", "Third Party Advisory", ], url: "http://www.openwall.com/lists/oss-security/2020/10/30/1", }, { name: "https://www.openwall.com/lists/oss-security/2020/11/04/3,", refsource: "MISC", tags: [ "Exploit", "Mailing List", "Patch", "Third Party Advisory", ], url: "https://www.openwall.com/lists/oss-security/2020/11/04/3,", }, { name: "https://security.netapp.com/advisory/ntap-20210702-0005/", refsource: "CONFIRM", tags: [ "Third Party Advisory", ], url: "https://security.netapp.com/advisory/ntap-20210702-0005/", }, ], }, }, impact: { baseMetricV2: { acInsufInfo: false, cvssV2: { accessComplexity: "MEDIUM", accessVector: "LOCAL", authentication: "NONE", availabilityImpact: "COMPLETE", baseScore: 6.9, confidentialityImpact: "COMPLETE", integrityImpact: "COMPLETE", vectorString: "AV:L/AC:M/Au:N/C:C/I:C/A:C", version: "2.0", }, exploitabilityScore: 3.4, impactScore: 10, obtainAllPrivilege: false, obtainOtherPrivilege: false, obtainUserPrivilege: false, severity: "MEDIUM", userInteractionRequired: false, }, baseMetricV3: { cvssV3: { attackComplexity: "HIGH", attackVector: "LOCAL", availabilityImpact: "HIGH", baseScore: 7, baseSeverity: "HIGH", confidentialityImpact: "HIGH", integrityImpact: "HIGH", privilegesRequired: "LOW", scope: "UNCHANGED", userInteraction: "NONE", vectorString: "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", version: "3.1", }, exploitabilityScore: 1, impactScore: 5.9, }, }, lastModifiedDate: "2023-10-05T14:21Z", publishedDate: "2021-05-26T12:15Z", }, }, }
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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.