nlnetlabs Archives - CVE Vulnerability https://cvevulnerability.com/cve_products/nlnetlabs/ Sun, 26 Feb 2023 06:40:48 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 https://cvevulnerability.com/wp-content/uploads/2023/02/cropped-Screenshot-2023-02-27-at-3.52.32-PM-32x32.png nlnetlabs Archives - CVE Vulnerability https://cvevulnerability.com/cve_products/nlnetlabs/ 32 32 CVE-2020-28935 https://cvevulnerability.com/cve_vulnerabilities/cve-2020-28935/ Sun, 26 Feb 2023 06:40:48 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2020-28935/ 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 […]

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]]> 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.

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]]> CVE-2020-19861 https://cvevulnerability.com/cve_vulnerabilities/cve-2020-19861/ Sun, 26 Feb 2023 06:38:48 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2020-19861/ When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe – ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage.

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]]> When a zone file in ldns 1.7.1 is parsed, the function ldns_nsec3_salt_data is too trusted for the length value obtained from the zone file. When the memcpy is copied, the 0xfe – ldns_rdf_size(salt_rdf) byte data can be copied, causing heap overflow information leakage.

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]]> CVE-2020-19860 https://cvevulnerability.com/cve_vulnerabilities/cve-2020-19860/ Sun, 26 Feb 2023 06:38:48 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2020-19860/ When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload.

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]]> When ldns version 1.7.1 verifies a zone file, the ldns_rr_new_frm_str_internal function has a heap out of bounds read vulnerability. An attacker can leak information on the heap by constructing a zone file payload.

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]]> CVE-2020-17366 https://cvevulnerability.com/cve_vulnerabilities/cve-2020-17366/ Sun, 26 Feb 2023 06:38:28 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2020-17366/ An issue was discovered in NLnet Labs Routinator 0.1.0 through 0.7.1. It allows remote attackers to bypass intended access restrictions or to cause a denial of service on dependent routing systems by strategically withholding RPKI Route Origin Authorisation “.roa” files or X509 Certificate Revocation List files from the RPKI relying party’s view.

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]]> An issue was discovered in NLnet Labs Routinator 0.1.0 through 0.7.1. It allows remote attackers to bypass intended access restrictions or to cause a denial of service on dependent routing systems by strategically withholding RPKI Route Origin Authorisation “.roa” files or X509 Certificate Revocation List files from the RPKI relying party’s view.

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]]> CVE-2020-12663 https://cvevulnerability.com/cve_vulnerabilities/cve-2020-12663/ Sun, 26 Feb 2023 06:36:39 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2020-12663/ Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.

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]]> Unbound before 1.10.1 has an infinite loop via malformed DNS answers received from upstream servers.

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]]> CVE-2020-12662 https://cvevulnerability.com/cve_vulnerabilities/cve-2020-12662/ Sun, 26 Feb 2023 06:36:39 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2020-12662/ Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an “NXNSAttack” issue. This is triggered by random subdomains in the NSDNAME in NS records.

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]]> Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an “NXNSAttack” issue. This is triggered by random subdomains in the NSDNAME in NS records.

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]]> CVE-2020-10772 https://cvevulnerability.com/cve_vulnerabilities/cve-2020-10772/ Sun, 26 Feb 2023 06:35:57 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2020-10772/ An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the […]

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]]> An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification ratio compared to versions of Unbound that shipped before the mentioned erratum. This issue is about the incomplete fix for CVE-2020-12662, and it does not affect upstream versions of Unbound.

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]]> CVE-2019-25034 https://cvevulnerability.com/cve_vulnerabilities/cve-2019-25034/ Sun, 26 Feb 2023 06:32:49 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2019-25034/ ** DISPUTED ** Unbound before 1.9.5 allows an integer overflow in sldns_str2wire_dname_buf_origin, leading to an out-of-bounds write. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.

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]]> ** DISPUTED ** Unbound before 1.9.5 allows an integer overflow in sldns_str2wire_dname_buf_origin, leading to an out-of-bounds write. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.

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]]> CVE-2019-25042 https://cvevulnerability.com/cve_vulnerabilities/cve-2019-25042/ Sun, 26 Feb 2023 06:32:49 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2019-25042/ ** DISPUTED ** Unbound before 1.9.5 allows an out-of-bounds write via a compressed name in rdata_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.

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]]> ** DISPUTED ** Unbound before 1.9.5 allows an out-of-bounds write via a compressed name in rdata_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.

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]]> CVE-2019-25041 https://cvevulnerability.com/cve_vulnerabilities/cve-2019-25041/ Sun, 26 Feb 2023 06:32:49 +0000 https://www.cvevulnerability.com/cve_vulnerabilities/cve-2019-25041/ ** DISPUTED ** Unbound before 1.9.5 allows an assertion failure via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.

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]]> ** DISPUTED ** Unbound before 1.9.5 allows an assertion failure via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited.

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