All the vulnerabilites related to NLnet Labs - Unbound
cve-2022-30699
Vulnerability from cvelistv5
Published
2022-08-01 14:13
Modified
2024-09-16 18:29
Severity ?
EPSS score ?
Summary
Novel "ghost domain names" attack by updating almost expired delegation information
References
Impacted products
▼ | Vendor | Product |
---|---|---|
NLnet Labs | Unbound |
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cve-2024-1931
Vulnerability from cvelistv5
Published
2024-03-07 09:17
Modified
2024-08-28 20:43
Severity ?
EPSS score ?
Summary
Denial of service when trimming EDE text on positive replies
References
Impacted products
▼ | Vendor | Product |
---|---|---|
NLnet Labs | Unbound |
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Unbound 1.18.0 introduced a feature that removes EDE records from responses with size higher than the client\u0027s advertised buffer size. Before removing all the EDE records however, it would try to see if trimming the extra text fields on those records would result in an acceptable size while still retaining the EDE codes. Due to an unchecked condition, the code that trims the text of the EDE records could loop indefinitely. This happens when Unbound would reply with attached EDE information on a positive reply and the client\u0027s buffer size is smaller than the needed space to include EDE records. The vulnerability can only be triggered when the \u0027ede: yes\u0027 option is used; non default configuration. From version 1.19.2 on, the code is fixed to avoid looping indefinitely." } ], "metrics": [ { "cvssV3_1": { "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "\u0027ede: yes\u0027 option set" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-835", "description": "CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-03-07T09:17:13.072Z", "orgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "shortName": "NLnet Labs" }, "references": [ { "tags": [ "vendor-advisory" ], "url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2024-1931.txt" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4VCBRQ7KMSIGBQ6A4SBL5PF326DIJIIV/" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B2JUIFPA7H75Q2W3VXW2TUNHK6NVGOX4/" }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RBR4H7RCVMJ6H76S4LLRSY5EBFTYWGXK/" }, { "url": "https://lists.freebsd.org/archives/freebsd-security/2024-July/000283.html" }, { "url": "https://security.netapp.com/advisory/ntap-20240705-0006/" } ], "solutions": [ { "lang": "en", "value": "This issue is fixed in 1.19.2 and all later versions. For the vulnerable versions 1.18.0 up to and including 1.19.1, the option \u0027ede: no\u0027 (default configuration) is also a solution as it does not exercise the vulnerable code path." } ], "timeline": [ { "lang": "en", "time": "2024-02-17T00:00:00.000Z", "value": "Issue reported by SUNET" }, { "lang": "en", "time": "2024-02-19T00:00:00.000Z", "value": "Issue acknowledged by NLnet Labs" }, { "lang": "en", "time": "2021-09-22T00:00:00.000Z", "value": "Mitigation shared with SUNET" }, { "lang": "en", "time": "2024-03-07T00:00:00.000Z", "value": "Fixes released with Unbound 1.19.2" } ], "title": "Denial of service when trimming EDE text on positive replies" } }, "cveMetadata": { "assignerOrgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "assignerShortName": "NLnet Labs", "cveId": "CVE-2024-1931", "datePublished": "2024-03-07T09:17:13.072Z", "dateReserved": "2024-02-27T13:43:18.777Z", "dateUpdated": "2024-08-28T20:43:00.408Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
cve-2022-3204
Vulnerability from cvelistv5
Published
2022-09-26 13:41
Modified
2024-09-17 03:19
Severity ?
EPSS score ?
Summary
NRDelegation Attack
References
Impacted products
▼ | Vendor | Product |
---|---|---|
NLnet Labs | Unbound |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-03T01:00:10.542Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-3204.txt" }, { "name": "FEDORA-2022-1326d2815c", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3G2HS6CYPSIGAKO6QLEZPG3RD6AMPB7B/" }, { "name": "FEDORA-2022-164cf7837e", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35QGS5FBQTG3DBSK7QV67PA64P24ABHY/" }, { "name": "FEDORA-2022-204ee3da84", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4EU6DMJXQFMAIE6SLAH4H5RNRU6VQL/" }, { "name": "GLSA-202212-02", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://security.gentoo.org/glsa/202212-02" }, { "name": "[debian-lts-announce] 20230329 [SECURITY] [DLA 3371-1] unbound security update", "tags": [ "mailing-list", "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "Unbound", "vendor": "NLnet Labs", "versions": [ { "lessThanOrEqual": "1.16.2", "status": "affected", "version": "unspecified", "versionType": "custom" } ] } ], "credits": [ { "lang": "en", "value": "We would like to thank Yehuda Afek from Tel-Aviv University, Anat Bremler-Barr and Shani Stajnrod from Reichman University for discovering and disclosing the vulnerability." } ], "datePublic": "2022-09-21T00:00:00", "descriptions": [ { "lang": "en", "value": "A vulnerability named \u0027Non-Responsive Delegation Attack\u0027 (NRDelegation Attack) has been discovered in various DNS resolving software. The NRDelegation Attack works by having a malicious delegation with a considerable number of non responsive nameservers. The attack starts by querying a resolver for a record that relies on those unresponsive nameservers. The attack can cause a resolver to spend a lot of time/resources resolving records under a malicious delegation point where a considerable number of unresponsive NS records reside. It can trigger high CPU usage in some resolver implementations that continually look in the cache for resolved NS records in that delegation. This can lead to degraded performance and eventually denial of service in orchestrated attacks. Unbound does not suffer from high CPU usage, but resources are still needed for resolving the malicious delegation. Unbound will keep trying to resolve the record until hard limits are reached. Based on the nature of the attack and the replies, different limits could be reached. From version 1.16.3 on, Unbound introduces fixes for better performance when under load, by cutting opportunistic queries for nameserver discovery and DNSKEY prefetching and limiting the number of times a delegation point can issue a cache lookup for missing records." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2023-03-29T00:00:00", "orgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "shortName": "NLnet Labs" }, "references": [ { "url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-3204.txt" }, { "name": "FEDORA-2022-1326d2815c", "tags": [ "vendor-advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3G2HS6CYPSIGAKO6QLEZPG3RD6AMPB7B/" }, { "name": "FEDORA-2022-164cf7837e", "tags": [ "vendor-advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/35QGS5FBQTG3DBSK7QV67PA64P24ABHY/" }, { "name": "FEDORA-2022-204ee3da84", "tags": [ "vendor-advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4S4EU6DMJXQFMAIE6SLAH4H5RNRU6VQL/" }, { "name": "GLSA-202212-02", "tags": [ "vendor-advisory" ], "url": "https://security.gentoo.org/glsa/202212-02" }, { "name": "[debian-lts-announce] 20230329 [SECURITY] [DLA 3371-1] unbound security update", "tags": [ "mailing-list" ], "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html" } ], "title": "NRDelegation Attack" } }, "cveMetadata": { "assignerOrgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "assignerShortName": "NLnet Labs", "cveId": "CVE-2022-3204", "datePublished": "2022-09-26T13:41:46.275188Z", "dateReserved": "2022-09-13T00:00:00", "dateUpdated": "2024-09-17T03:19:03.035Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
cve-2020-28935
Vulnerability from cvelistv5
Published
2020-12-07 21:46
Modified
2024-09-16 23:27
Severity ?
EPSS score ?
Summary
Local symlink attack in Unbound and NSD
References
Impacted products
▼ | Vendor | Product |
---|---|---|
NLnet Labs | Unbound | |
NLnet Labs | NSD |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T16:48:00.719Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "tags": [ "x_transferred" ], "url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2020-28935.txt" }, { "tags": [ "x_transferred" ], "url": "https://www.nlnetlabs.nl/downloads/nsd/CVE-2020-28935.txt" }, { "name": "GLSA-202101-38", "tags": [ "vendor-advisory", "x_transferred" ], "url": "https://security.gentoo.org/glsa/202101-38" }, { "name": "[debian-lts-announce] 20210212 [SECURITY] [DLA 2556-1] unbound1.9 security update", "tags": [ "mailing-list", "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html" }, { "name": "[debian-lts-announce] 20230329 [SECURITY] [DLA 3371-1] unbound security update", "tags": [ "mailing-list", "x_transferred" ], "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "Unbound", "vendor": "NLnet Labs", "versions": [ { "status": "affected", "version": "\u003c= 1.12.0" } ] }, { "product": "NSD", "vendor": "NLnet Labs", "versions": [ { "status": "affected", "version": "\u003c= 4.3.3" } ] } ], "credits": [ { "lang": "en", "value": "We would like to thank Mason Loring Bliss for bringing the issue to our attention." } ], "datePublic": "2020-12-01T00:00:00", "descriptions": [ { "lang": "en", "value": "NLnet Labs Unbound, up to and including version 1.12.0, and NLnet Labs NSD, up to and including version 4.3.3, contain a local vulnerability that would allow for a local symlink attack. When writing the PID file, Unbound and NSD create the file if it is not there, or open an existing file for writing. In case the file was already present, they would follow symlinks if the file happened to be a symlink instead of a regular file. An additional chown of the file would then take place after it was written, making the user Unbound/NSD is supposed to run as the new owner of the file. If an attacker has local access to the user Unbound/NSD runs as, she could create a symlink in place of the PID file pointing to a file that she would like to erase. If then Unbound/NSD is killed and the PID file is not cleared, upon restarting with root privileges, Unbound/NSD will rewrite any file pointed at by the symlink. This is a local vulnerability that could create a Denial of Service of the system Unbound/NSD is running on. It requires an attacker having access to the limited permission user Unbound/NSD runs as and point through the symlink to a critical file on the system." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-59", "description": "CWE-59: Improper Link Resolution Before File Access (\u0027Link Following\u0027)", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2023-03-29T00:00:00", "orgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "shortName": "NLnet Labs" }, "references": [ { "url": "https://www.nlnetlabs.nl/downloads/unbound/CVE-2020-28935.txt" }, { "url": "https://www.nlnetlabs.nl/downloads/nsd/CVE-2020-28935.txt" }, { "name": "GLSA-202101-38", "tags": [ "vendor-advisory" ], "url": "https://security.gentoo.org/glsa/202101-38" }, { "name": "[debian-lts-announce] 20210212 [SECURITY] [DLA 2556-1] unbound1.9 security update", "tags": [ "mailing-list" ], "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html" }, { "name": "[debian-lts-announce] 20230329 [SECURITY] [DLA 3371-1] unbound security update", "tags": [ "mailing-list" ], "url": "https://lists.debian.org/debian-lts-announce/2023/03/msg00024.html" } ], "title": "Local symlink attack in Unbound and NSD" } }, "cveMetadata": { "assignerOrgId": "206fc3a0-e175-490b-9eaa-a5738056c9f6", "assignerShortName": "NLnet Labs", "cveId": "CVE-2020-28935", "datePublished": "2020-12-07T21:46:47.878342Z", "dateReserved": "2020-11-18T00:00:00", "dateUpdated": "2024-09-16T23:27:01.127Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
cve-2024-8508
Vulnerability from cvelistv5
Published
2024-10-03 16:27
Modified
2024-11-14 21:02
Severity ?
EPSS score ?
Summary
Unbounded name compression could lead to Denial of Service
References
▼ | URL | Tags |
---|---|---|
https://www.nlnetlabs.nl/downloads/unbound/CVE-2024-8508.txt | vendor-advisory |
Impacted products
▼ | Vendor | Product |
---|---|---|
NLnet Labs | Unbound |
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cve-2017-15105
Vulnerability from cvelistv5
Published
2018-01-23 16:00
Modified
2024-09-16 21:56
Severity ?
EPSS score ?
Summary
A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.
References
▼ | URL | Tags |
---|---|---|
http://www.securityfocus.com/bid/102817 | vdb-entry, x_refsource_BID | |
https://lists.debian.org/debian-lts-announce/2019/02/msg00022.html | mailing-list, x_refsource_MLIST | |
https://lists.debian.org/debian-lts-announce/2018/01/msg00039.html | mailing-list, x_refsource_MLIST | |
https://unbound.net/downloads/CVE-2017-15105.txt | x_refsource_CONFIRM | |
https://usn.ubuntu.com/3673-1/ | vendor-advisory, x_refsource_UBUNTU |
Impacted products
▼ | Vendor | Product |
---|---|---|
NLnet Labs | unbound |
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cve-2022-30698
Vulnerability from cvelistv5
Published
2022-08-01 14:13
Modified
2024-09-16 19:35
Severity ?
EPSS score ?
Summary
Novel "ghost domain names" attack by introducing subdomain delegations
References
Impacted products
▼ | Vendor | Product |
---|---|---|
NLnet Labs | Unbound |
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