cve-2020-29568
Vulnerability from cvelistv5
Published
2020-12-15 16:52
Modified
2024-08-04 16:55
Severity ?
EPSS score ?
Summary
An issue was discovered in Xen through 4.14.x. Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable.
References
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Some OSes (such as Linux, FreeBSD, and NetBSD) are processing watch events using a single thread. If the events are received faster than the thread is able to handle, they will get queued. As the queue is unbounded, a guest may be able to trigger an OOM in the backend. All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2021-07-12T04:06:12", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "tags": [ "x_refsource_MISC" ], "url": "https://xenbits.xenproject.org/xsa/advisory-349.html" }, { "name": "DSA-4843", "tags": [ "vendor-advisory", "x_refsource_DEBIAN" ], "url": "https://www.debian.org/security/2021/dsa-4843" }, { "name": "[debian-lts-announce] 20210212 [SECURITY] [DLA 2557-1] linux-4.19 security update", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html" }, { "name": "[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html" }, { "name": "GLSA-202107-30", "tags": [ "vendor-advisory", "x_refsource_GENTOO" ], "url": "https://security.gentoo.org/glsa/202107-30" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-29568", "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": "An issue was discovered in Xen through 4.14.x. 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All systems with a FreeBSD, Linux, or NetBSD (any version) dom0 are vulnerable." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://xenbits.xenproject.org/xsa/advisory-349.html", "refsource": "MISC", "url": "https://xenbits.xenproject.org/xsa/advisory-349.html" }, { "name": "DSA-4843", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2021/dsa-4843" }, { "name": "[debian-lts-announce] 20210212 [SECURITY] [DLA 2557-1] linux-4.19 security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html" }, { "name": "[debian-lts-announce] 20210309 [SECURITY] [DLA 2586-1] linux security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html" }, { "name": "GLSA-202107-30", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202107-30" } ] } } } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-29568", "datePublished": "2020-12-15T16:52:04", "dateReserved": "2020-12-04T00:00:00", "dateUpdated": "2024-08-04T16:55:10.345Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "fkie_nvd": { "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*\", \"versionEndIncluding\": \"4.14.1\", \"matchCriteriaId\": \"98708CDE-265E-4841-B910-B632F7BAAC3E\"}]}]}, {\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"DEECE5FC-CACF-4496-A3E7-164736409252\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"07B237A9-69A3-4A9C-9DA0-4E06BD37AE73\"}]}]}]", "descriptions": "[{\"lang\": \"en\", \"value\": \"An issue was discovered in Xen through 4.14.x. 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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.