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A flaw was found in librest. The PKCE implementation for OAuth authorization uses the GRand function from the GLib API, a cryptographically insecure pseudo-random number generator. Because the generated "code verifier" lacks...
1 affected package
librest
| Package | 22.04 LTS |
|---|---|
| librest | Needs evaluation |
The BIND resolver accepts validly-signed NSEC records where the "Next Domain Name" field points outside the signer's zone. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23,...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Needs evaluation |
| isc-dhcp | Not affected |
| bind9-libs | Needs evaluation |
If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof. This...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Needs evaluation |
| isc-dhcp | Not affected |
| bind9-libs | Needs evaluation |
The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Needs evaluation |
| isc-dhcp | Not affected |
| bind9-libs | Needs evaluation |
It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes `named` to produce a wildcard name for a zone that is shorter...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Needs evaluation |
| isc-dhcp | Not affected |
| bind9-libs | Needs evaluation |
A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation....
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Needs evaluation |
| isc-dhcp | Not affected |
| bind9-libs | Needs evaluation |
The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Not affected |
| isc-dhcp | Not affected |
| bind9-libs | Not affected |
An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not handled correctly and may lead...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Needs evaluation |
| isc-dhcp | Not affected |
| bind9-libs | Needs evaluation |
If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and may subsequently abort and exit. BIND will first need to store a DNS record for a key (KEY, DNSKEY, etc.). That key must...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Needs evaluation |
| isc-dhcp | Not affected |
| bind9-libs | Needs evaluation |
BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authenticated NXDOMAIN responses. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0...
3 affected packages
bind9, isc-dhcp, bind9-libs
| Package | 22.04 LTS |
|---|---|
| bind9 | Needs evaluation |
| isc-dhcp | Not affected |
| bind9-libs | Needs evaluation |