| Name | CVE-2015-5470 |
| Description | The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3306-1, DSA-3307-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| pdns (PTS) | jessie, jessie (lts) | 3.4.1-4+deb8u10 | fixed |
| stretch (security), stretch (lts), stretch | 4.0.3-1+deb9u5 | fixed |
| buster | 4.1.6-3+deb10u1 | fixed |
| bullseye | 4.4.1-1 | fixed |
| bookworm | 4.7.3-2 | fixed |
| sid, trixie | 4.9.3-1 | fixed |
| pdns-recursor (PTS) | jessie, jessie (lts) | 3.6.2-2+deb8u4 | fixed |
| buster (security), buster, buster (lts) | 4.1.11-1+deb10u2 | fixed |
| bullseye | 4.4.2-3 | fixed |
| bookworm (security), bookworm | 4.8.8-1 | fixed |
| sid, trixie | 5.1.3-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[wheezy] - pdns <not-affected> (3.2 and up affected)
[squeeze] - pdns <not-affected> (3.2 and up affected)
[wheezy] - pdns-recursor <not-affected> (3.5 and up affected)
[squeeze] - pdns-recursor <not-affected> (3.5 and up affected)
https://www.openwall.com/lists/oss-security/2015/07/07/6
https://doc.powerdns.com/md/security/powerdns-advisory-2015-01/
Patch: http://downloads.powerdns.com/patches/2015-01/rec-3.7.2.patch