gsd-2021-33909
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2021-33909", "description": "fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.", "id": "GSD-2021-33909", "references": [ "https://www.suse.com/security/cve/CVE-2021-33909.html", "https://www.debian.org/security/2021/dsa-4941", "https://access.redhat.com/errata/RHSA-2021:2737", "https://access.redhat.com/errata/RHSA-2021:2736", "https://access.redhat.com/errata/RHSA-2021:2735", "https://access.redhat.com/errata/RHSA-2021:2734", "https://access.redhat.com/errata/RHSA-2021:2733", "https://access.redhat.com/errata/RHSA-2021:2732", "https://access.redhat.com/errata/RHSA-2021:2731", "https://access.redhat.com/errata/RHSA-2021:2730", "https://access.redhat.com/errata/RHSA-2021:2729", "https://access.redhat.com/errata/RHSA-2021:2728", "https://access.redhat.com/errata/RHSA-2021:2727", "https://access.redhat.com/errata/RHSA-2021:2726", "https://access.redhat.com/errata/RHSA-2021:2725", "https://access.redhat.com/errata/RHSA-2021:2723", "https://access.redhat.com/errata/RHSA-2021:2722", "https://access.redhat.com/errata/RHSA-2021:2720", "https://access.redhat.com/errata/RHSA-2021:2719", "https://access.redhat.com/errata/RHSA-2021:2718", "https://access.redhat.com/errata/RHSA-2021:2716", "https://access.redhat.com/errata/RHSA-2021:2715", "https://access.redhat.com/errata/RHSA-2021:2714", "https://ubuntu.com/security/CVE-2021-33909", "https://advisories.mageia.org/CVE-2021-33909.html", "https://security.archlinux.org/CVE-2021-33909", "https://alas.aws.amazon.com/cve/html/CVE-2021-33909.html", "https://linux.oracle.com/cve/CVE-2021-33909.html", "https://packetstormsecurity.com/files/cve/CVE-2021-33909" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-33909" ], "details": "fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.", "id": "GSD-2021-33909", "modified": "2023-12-13T01:23:19.096724Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-33909", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "[debian-lts-announce] 20210720 [SECURITY] [DLA 2713-2] linux security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html" }, { "name": "[debian-lts-announce] 20210720 [SECURITY] [DLA 2713-1] linux security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html" }, { "name": "[debian-lts-announce] 20210720 [SECURITY] [DLA 2714-1] linux-4.19 security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html" }, { "name": "DSA-4941", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2021/dsa-4941" }, { "name": "FEDORA-2021-07dc0b3eb1", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/" }, { "name": "[oss-security] 20210722 Re: CVE-2021-33909: size_t-to-int vulnerability in Linux\u0027s filesystem layer", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/07/22/7" }, { "name": "[oss-security] 20210825 Re: CVE-2021-33909: size_t-to-int vulnerability in Linux\u0027s filesystem layer", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/08/25/10" }, { "name": "[oss-security] 20210916 Containers-optimized OS (COS) membership in the linux-distros list", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/09/17/2" }, { "name": "[oss-security] 20210917 Re: Containers-optimized OS (COS) membership in the linux-distros list", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/09/17/4" }, { "name": "[oss-security] 20210920 Re: Containers-optimized OS (COS) membership in the linux-distros list", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/09/21/1" }, { "name": "https://www.oracle.com/security-alerts/cpujan2022.html", "refsource": "MISC", "url": "https://www.oracle.com/security-alerts/cpujan2022.html" }, { "name": "https://www.openwall.com/lists/oss-security/2021/07/20/1", "refsource": "MISC", "url": "https://www.openwall.com/lists/oss-security/2021/07/20/1" }, { "name": "https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b", "refsource": "CONFIRM", "url": "https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b" }, { "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4", "refsource": "CONFIRM", "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4" }, { "name": "http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html" }, { "name": "http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html" }, { "name": "https://security.netapp.com/advisory/ntap-20210819-0004/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210819-0004/" }, { "name": "http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html" }, { "name": "http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html" }, { "name": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015", "refsource": "CONFIRM", "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "5.10.52", "versionStartIncluding": "5.5", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "5.12.19", "versionStartIncluding": "5.11", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "5.13.4", "versionStartIncluding": "5.13", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "3.13", "versionStartIncluding": "3.12.43", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.4.276", "versionStartIncluding": "3.16", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.9.276", "versionStartIncluding": "4.5", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.14.240", "versionStartIncluding": "4.10", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.19.198", "versionStartIncluding": "4.15", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "5.4.134", "versionStartIncluding": "4.20", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:oracle:communications_session_border_controller:8.3:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:oracle:communications_session_border_controller:8.4:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:oracle:communications_session_border_controller:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:oracle:communications_session_border_controller:8.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:sonicwall:sma1000_firmware:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndIncluding": "12.4.2-02044", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:h:sonicwall:sma1000:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": false } ], "operator": "OR" } ], "cpe_match": [], "operator": "AND" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-33909" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-787" }, { "lang": "en", "value": "CWE-190" } ] } ] }, "references": { "reference_data": [ { "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4", "refsource": "CONFIRM", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ], "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4" }, { "name": "https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b", "refsource": "CONFIRM", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b" }, { "name": "https://www.openwall.com/lists/oss-security/2021/07/20/1", "refsource": "MISC", "tags": [ "Exploit", "Mailing List", "Third Party Advisory" ], "url": "https://www.openwall.com/lists/oss-security/2021/07/20/1" }, { "name": "[debian-lts-announce] 20210720 [SECURITY] [DLA 2713-2] linux security update", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html" }, { "name": "[debian-lts-announce] 20210720 [SECURITY] [DLA 2714-1] linux-4.19 security update", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html" }, { "name": "[debian-lts-announce] 20210720 [SECURITY] [DLA 2713-1] linux security update", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html" }, { "name": "DSA-4941", "refsource": "DEBIAN", "tags": [ "Third Party Advisory" ], "url": "https://www.debian.org/security/2021/dsa-4941" }, { "name": "http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html", "refsource": "MISC", "tags": [ "Exploit", "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html" }, { "name": "FEDORA-2021-07dc0b3eb1", "refsource": "FEDORA", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/" }, { "name": "[oss-security] 20210722 Re: CVE-2021-33909: size_t-to-int vulnerability in Linux\u0027s filesystem layer", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2021/07/22/7" }, { "name": "http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html", "refsource": "MISC", "tags": [ "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html" }, { "name": "https://security.netapp.com/advisory/ntap-20210819-0004/", "refsource": "CONFIRM", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210819-0004/" }, { "name": "[oss-security] 20210825 Re: CVE-2021-33909: size_t-to-int vulnerability in Linux\u0027s filesystem layer", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2021/08/25/10" }, { "name": "http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html", "refsource": "MISC", "tags": [ "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html" }, { "name": "[oss-security] 20210916 Containers-optimized OS (COS) membership in the linux-distros list", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2021/09/17/2" }, { "name": "[oss-security] 20210917 Re: Containers-optimized OS (COS) membership in the linux-distros list", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2021/09/17/4" }, { "name": "[oss-security] 20210920 Re: Containers-optimized OS (COS) membership in the linux-distros list", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "http://www.openwall.com/lists/oss-security/2021/09/21/1" }, { "name": "http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html", "refsource": "MISC", "tags": [ "Third Party Advisory", "VDB Entry" ], "url": "http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html" }, { "name": "https://www.oracle.com/security-alerts/cpujan2022.html", "refsource": "MISC", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://www.oracle.com/security-alerts/cpujan2022.html" }, { "name": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015", "refsource": "CONFIRM", "tags": [ "Third Party Advisory" ], "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0" }, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "HIGH", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 1.8, "impactScore": 5.9 } }, "lastModifiedDate": "2023-03-01T20:14Z", "publishedDate": "2021-07-20T19:15Z" } } }
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Sightings
Author | Source | Type | Date |
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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.