Filtered by vendor Isc
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Total
231 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2023-2911 | 4 Debian, Fedoraproject, Isc and 1 more | 14 Debian Linux, Fedora, Bind and 11 more | 2025-02-13 | 7.5 High |
| If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow. This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1. | ||||
| CVE-2023-2829 | 2 Isc, Netapp | 12 Bind, Active Iq Unified Manager, H300s and 9 more | 2025-02-13 | 7.5 High |
| A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record. This issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1. | ||||
| CVE-2023-2828 | 5 Debian, Fedoraproject, Isc and 2 more | 19 Debian Linux, Fedora, Bind and 16 more | 2025-02-13 | 7.5 High |
| Every `named` instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the `max-cache-size` statement in the configuration file; it defaults to 90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets from the cache, to keep memory use below the configured limit. It has been discovered that the effectiveness of the cache-cleaning algorithm used in `named` can be severely diminished by querying the resolver for specific RRsets in a certain order, effectively allowing the configured `max-cache-size` limit to be significantly exceeded. This issue affects BIND 9 versions 9.11.0 through 9.16.41, 9.18.0 through 9.18.15, 9.19.0 through 9.19.13, 9.11.3-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1. | ||||
| CVE-2022-2795 | 4 Debian, Fedoraproject, Isc and 1 more | 5 Debian Linux, Fedora, Bind and 2 more | 2024-11-29 | 5.3 Medium |
| By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service. | ||||
| CVE-2023-50387 | 8 Fedoraproject, Isc, Microsoft and 5 more | 18 Fedora, Bind, Windows Server 2008 and 15 more | 2024-11-21 | 7.5 High |
| Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records. | ||||
| CVE-2022-3080 | 3 Fedoraproject, Isc, Redhat | 3 Fedora, Bind, Enterprise Linux | 2024-11-21 | 7.5 High |
| By sending specific queries to the resolver, an attacker can cause named to crash. | ||||
| CVE-2022-38178 | 5 Debian, Fedoraproject, Isc and 2 more | 8 Debian Linux, Fedora, Bind and 5 more | 2024-11-21 | 7.5 High |
| By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources. | ||||
| CVE-2022-38177 | 5 Debian, Fedoraproject, Isc and 2 more | 8 Debian Linux, Fedora, Bind and 5 more | 2024-11-21 | 7.5 High |
| By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources. | ||||
| CVE-2022-2929 | 4 Debian, Fedoraproject, Isc and 1 more | 4 Debian Linux, Fedora, Dhcp and 1 more | 2024-11-21 | 6.5 Medium |
| In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory. | ||||
| CVE-2022-2928 | 4 Debian, Fedoraproject, Isc and 1 more | 4 Debian Linux, Fedora, Dhcp and 1 more | 2024-11-21 | 6.5 Medium |
| In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decrement the refcount field. The function add_option() is only used in server responses to lease query packets. Each lease query response calls this function for several options, so eventually, the reference counters could overflow and cause the server to abort. | ||||
| CVE-2022-2906 | 1 Isc | 1 Bind | 2024-11-21 | 7.5 High |
| An attacker can leverage this flaw to gradually erode available memory to the point where named crashes for lack of resources. Upon restart the attacker would have to begin again, but nevertheless there is the potential to deny service. | ||||
| CVE-2022-2881 | 1 Isc | 1 Bind | 2024-11-21 | 5.5 Medium |
| The underlying bug might cause read past end of the buffer and either read memory it should not read, or crash the process. | ||||
| CVE-2022-1183 | 2 Isc, Netapp | 11 Bind, H300s, H300s Firmware and 8 more | 2024-11-21 | 7.5 High |
| On vulnerable configurations, the named daemon may, in some circumstances, terminate with an assertion failure. Vulnerable configurations are those that include a reference to http within the listen-on statements in their named.conf. TLS is used by both DNS over TLS (DoT) and DNS over HTTPS (DoH), but configurations using DoT alone are unaffected. Affects BIND 9.18.0 -> 9.18.2 and version 9.19.0 of the BIND 9.19 development branch. | ||||
| CVE-2022-0667 | 2 Isc, Netapp | 17 Bind, H300e, H300e Firmware and 14 more | 2024-11-21 | 7.5 High |
| When the vulnerability is triggered the BIND process will exit. BIND 9.18.0 | ||||
| CVE-2022-0635 | 2 Isc, Netapp | 17 Bind, H300e, H300e Firmware and 14 more | 2024-11-21 | 7.5 High |
| Versions affected: BIND 9.18.0 When a vulnerable version of named receives a series of specific queries, the named process will eventually terminate due to a failed assertion check. | ||||
| CVE-2022-0396 | 5 Fedoraproject, Isc, Netapp and 2 more | 20 Fedora, Bind, H300e and 17 more | 2024-11-21 | 5.3 Medium |
| BIND 9.16.11 -> 9.16.26, 9.17.0 -> 9.18.0 and versions 9.16.11-S1 -> 9.16.26-S1 of the BIND Supported Preview Edition. Specifically crafted TCP streams can cause connections to BIND to remain in CLOSE_WAIT status for an indefinite period of time, even after the client has terminated the connection. | ||||
| CVE-2021-25220 | 6 Fedoraproject, Isc, Juniper and 3 more | 50 Fedora, Bind, Junos and 47 more | 2024-11-21 | 6.8 Medium |
| BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients. | ||||
| CVE-2021-25219 | 7 Debian, Fedoraproject, Isc and 4 more | 24 Debian Linux, Fedora, Bind and 21 more | 2024-11-21 | 5.3 Medium |
| In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing. | ||||
| CVE-2021-25218 | 2 Fedoraproject, Isc | 2 Fedora, Bind | 2024-11-21 | 7.5 High |
| In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition. | ||||
| CVE-2021-25217 | 6 Debian, Fedoraproject, Isc and 3 more | 33 Debian Linux, Fedora, Dhcp and 30 more | 2024-11-21 | 7.4 High |
| In ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16, ISC DHCP 4.4.0 -> 4.4.2 (Other branches of ISC DHCP (i.e., releases in the 4.0.x series or lower and releases in the 4.3.x series) are beyond their End-of-Life (EOL) and no longer supported by ISC. From inspection it is clear that the defect is also present in releases from those series, but they have not been officially tested for the vulnerability), The outcome of encountering the defect while reading a lease that will trigger it varies, according to: the component being affected (i.e., dhclient or dhcpd) whether the package was built as a 32-bit or 64-bit binary whether the compiler flag -fstack-protection-strong was used when compiling In dhclient, ISC has not successfully reproduced the error on a 64-bit system. However, on a 32-bit system it is possible to cause dhclient to crash when reading an improper lease, which could cause network connectivity problems for an affected system due to the absence of a running DHCP client process. In dhcpd, when run in DHCPv4 or DHCPv6 mode: if the dhcpd server binary was built for a 32-bit architecture AND the -fstack-protection-strong flag was specified to the compiler, dhcpd may exit while parsing a lease file containing an objectionable lease, resulting in lack of service to clients. Additionally, the offending lease and the lease immediately following it in the lease database may be improperly deleted. if the dhcpd server binary was built for a 64-bit architecture OR if the -fstack-protection-strong compiler flag was NOT specified, the crash will not occur, but it is possible for the offending lease and the lease which immediately followed it to be improperly deleted. | ||||