A vulnerability in PowerDNS Recursor could lead to a Denial of Service condition.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/pdns-recursor | * | < 4.3.5 | >= 4.3.5 |
PowerDNS Recursor is a high-end, high-performance resolving name server.
It was discovered that it was possible to update the DNSSEC validation state to a bogus state for a cached record via DNS ANY query.
A remote attacker could send specially crafted DNS queries to deny DNSSEC validation.
There is no known workaround at this time.
All PowerDNS Recursor users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdns-recursor-4.3.5"
Multiple vulnerabilities have been found in PowerDNS Recursor, the worst of which may allow execution of arbitrary code.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/pdns-recursor | * | < 3.6.1-r1 | >= 3.6.1-r1 |
PowerDNS Recursor is a high-end, high-performance resolving name server
Multiple vulnerabilities have been discovered in PowerDNS Recursor. Please review the CVE identifiers and PowerDNS blog post referenced below for details.
A remote attacker may be able to send specially crafted packets, possibly resulting in arbitrary code execution or a Denial of Service condition. Furthermore, a remote attacker may be able to spoof DNS data.
There is no known workaround at this time.
All PowerDNS Recursor users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdns-recursor-3.6.1-r1"
Use of insufficient randomness in PowerDNS Recursor might lead to DNS cache poisoning.
| Package | Arch | Vulnerable | Unaffected |
|---|---|---|---|
| net-dns/pdns-recursor | * | < 3.1.6 | >= 3.1.6 |
The PowerDNS Recursor is an advanced recursing nameserver.
Amit Klein of Trusteer reported that insufficient randomness is used to calculate the TRXID values and the UDP source port numbers (CVE-2008-1637). Thomas Biege of SUSE pointed out that a prior fix to resolve this issue was incomplete, as it did not always enable the stronger random number generator for source port selection (CVE-2008-3217).
A remote attacker could send malicious answers to insert arbitrary DNS data into the cache. These attacks would in turn help an attacker to perform man-in-the-middle and site impersonation attacks.
There is no known workaround at this time.
All PowerDNS Recursor users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-dns/pdns-recursor-3.1.6"