Filtered by vendor Isc
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Total
215 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2022-38178 | 4 Debian, Fedoraproject, Isc and 1 more | 4 Debian Linux, Fedora, Bind and 1 more | 2023-03-01 | N/A | 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 | 4 Debian, Fedoraproject, Isc and 1 more | 4 Debian Linux, Fedora, Bind and 1 more | 2023-02-28 | N/A | 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-2010-0290 | 1 Isc | 1 Bind | 2023-02-12 | 4.0 MEDIUM | N/A |
| Unspecified vulnerability in ISC BIND 9.0.x through 9.3.x, 9.4 before 9.4.3-P5, 9.5 before 9.5.2-P2, 9.6 before 9.6.1-P3, and 9.7.0 beta, with DNSSEC validation enabled and checking disabled (CD), allows remote attackers to conduct DNS cache poisoning attacks by receiving a recursive client query and sending a response that contains (1) CNAME or (2) DNAME records, which do not have the intended validation before caching, aka Bug 20737. NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4022. | |||||
| CVE-2007-0493 | 1 Isc | 1 Bind | 2023-02-12 | 7.8 HIGH | N/A |
| Use-after-free vulnerability in ISC BIND 9.3.0 up to 9.3.3, 9.4.0a1 up to 9.4.0a6, 9.4.0b1 up to 9.4.0b4, 9.4.0rc1, and 9.5.0a1 (Bind Forum only) allows remote attackers to cause a denial of service (named daemon crash) via unspecified vectors that cause named to "dereference a freed fetch context." | |||||
| CVE-2009-1893 | 2 Isc, Redhat | 2 Dhcp, Enterprise Linux | 2023-02-12 | 6.9 MEDIUM | N/A |
| The configtest function in the Red Hat dhcpd init script for DHCP 3.0.1 in Red Hat Enterprise Linux (RHEL) 3 allows local users to overwrite arbitrary files via a symlink attack on an unspecified temporary file, related to the "dhcpd -t" command. | |||||
| CVE-2020-8624 | 6 Canonical, Debian, Fedoraproject and 3 more | 6 Ubuntu Linux, Debian Linux, Fedora and 3 more | 2023-02-10 | 4.0 MEDIUM | 4.3 MEDIUM |
| In BIND 9.9.12 -> 9.9.13, 9.10.7 -> 9.10.8, 9.11.3 -> 9.11.21, 9.12.1 -> 9.16.5, 9.17.0 -> 9.17.3, also affects 9.9.12-S1 -> 9.9.13-S1, 9.11.3-S1 -> 9.11.21-S1 of the BIND 9 Supported Preview Edition, An attacker who has been granted privileges to change a specific subset of the zone's content could abuse these unintended additional privileges to update other contents of the zone. | |||||
| CVE-2022-3924 | 1 Isc | 1 Bind | 2023-02-06 | N/A | 7.5 HIGH |
| This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero. If the resolver receives many queries that require recursion, there will be a corresponding increase in the number of clients that are waiting for recursion to complete. If there are sufficient clients already waiting when a new client query is received so that it is necessary to SERVFAIL the longest waiting client (see BIND 9 ARM `recursive-clients` limit and soft quota), then it is possible for a race to occur between providing a stale answer to this older client and sending an early timeout SERVFAIL, which may cause an assertion failure. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1. | |||||
| CVE-2022-3736 | 1 Isc | 1 Bind | 2023-02-03 | N/A | 7.5 HIGH |
| BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1. | |||||
| CVE-2022-3488 | 1 Isc | 1 Bind | 2023-02-03 | N/A | 7.5 HIGH |
| Processing of repeated responses to the same query, where both responses contain ECS pseudo-options, but where the first is broken in some way, can cause BIND to exit with an assertion failure. 'Broken' in this context is anything that would cause the resolver to reject the query response, such as a mismatch between query and answer name. This issue affects BIND 9 versions 9.11.4-S1 through 9.11.37-S1 and 9.16.8-S1 through 9.16.36-S1. | |||||
| CVE-2022-3094 | 1 Isc | 1 Bind | 2023-02-03 | N/A | 7.5 HIGH |
| Sending a flood of dynamic DNS updates may cause `named` to allocate large amounts of memory. This, in turn, may cause `named` to exit due to a lack of free memory. We are not aware of any cases where this has been exploited. Memory is allocated prior to the checking of access permissions (ACLs) and is retained during the processing of a dynamic update from a client whose access credentials are accepted. Memory allocated to clients that are not permitted to send updates is released immediately upon rejection. The scope of this vulnerability is limited therefore to trusted clients who are permitted to make dynamic zone changes. If a dynamic update is REFUSED, memory will be released again very quickly. Therefore it is only likely to be possible to degrade or stop `named` by sending a flood of unaccepted dynamic updates comparable in magnitude to a query flood intended to achieve the same detrimental outcome. BIND 9.11 and earlier branches are also affected, but through exhaustion of internal resources rather than memory constraints. This may reduce performance but should not be a significant problem for most servers. Therefore we don't intend to address this for BIND versions prior to BIND 9.16. This issue affects BIND 9 versions 9.16.0 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.8-S1 through 9.16.36-S1. | |||||
| CVE-2012-4244 | 1 Isc | 1 Bind | 2022-12-09 | 7.8 HIGH | N/A |
| ISC BIND 9.x before 9.7.6-P3, 9.8.x before 9.8.3-P3, 9.9.x before 9.9.1-P3, and 9.4-ESV and 9.6-ESV before 9.6-ESV-R7-P3 allows remote attackers to cause a denial of service (assertion failure and named daemon exit) via a query for a long resource record. | |||||
| CVE-2021-25219 | 6 Debian, Fedoraproject, Isc and 3 more | 23 Debian Linux, Fedora, Bind and 20 more | 2022-12-07 | 5.0 MEDIUM | 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-2022-2906 | 1 Isc | 1 Bind | 2022-12-02 | N/A | 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-2022-3080 | 2 Fedoraproject, Isc | 2 Fedora, Bind | 2022-12-02 | N/A | 7.5 HIGH |
| By sending specific queries to the resolver, an attacker can cause named to crash. | |||||
| CVE-2021-25220 | 4 Fedoraproject, Isc, Netapp and 1 more | 19 Fedora, Bind, Baseboard Management Controller H300e and 16 more | 2022-11-28 | 4.0 MEDIUM | 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-2022-2928 | 3 Debian, Fedoraproject, Isc | 3 Debian Linux, Fedora, Dhcp | 2022-11-28 | N/A | 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-2022-2929 | 3 Debian, Fedoraproject, Isc | 3 Debian Linux, Fedora, Dhcp | 2022-11-21 | N/A | 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-2022-2881 | 1 Isc | 1 Bind | 2022-11-16 | N/A | 8.2 HIGH |
| The underlying bug might cause read past end of the buffer and either read memory it should not read, or crash the process. | |||||
| CVE-2022-0396 | 4 Fedoraproject, Isc, Netapp and 1 more | 19 Fedora, Bind, Baseboard Management Controller H300e and 16 more | 2022-11-16 | 4.3 MEDIUM | 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-2022-2795 | 3 Debian, Fedoraproject, Isc | 3 Debian Linux, Fedora, Bind | 2022-11-03 | N/A | 7.5 HIGH |
| 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. | |||||