CVE-2022-30698 (https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-30698_CVE-2022-30699.txt): NLnet Labs Unbound, up to and including version 1.16.1 is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before expiry of the delegation information by querying Unbound for a second level subdomain which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation. From version 1.16.2 on, Unbound checks the validity of parent delegation records before using cached delegation information. CVE-2022-30699 (https://www.nlnetlabs.nl/downloads/unbound/CVE-2022-30698_CVE-2022-30699.txt): NLnet Labs Unbound, up to and including version 1.16.1, is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a rogue domain name when the cached delegation information is about to expire. The rogue nameserver delays the response so that the cached delegation information is expired. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries. This action can be repeated when the delegation information is about to expire making the rogue delegation information ever-updating. From version 1.16.2 on, Unbound stores the start time for a query and uses that to decide if the cached delegation information can be overwritten. Please bump to unbound-1.16.2.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c6bbd5b17f6b2c08088c2f50c16b048cdc9ec166 commit c6bbd5b17f6b2c08088c2f50c16b048cdc9ec166 Author: Marc Schiffbauer <mschiff@gentoo.org> AuthorDate: 2022-08-28 15:09:30 +0000 Commit: Marc Schiffbauer <mschiff@gentoo.org> CommitDate: 2022-08-28 15:10:03 +0000 net-dns/unbound: add 1.16.2 Bug: https://bugs.gentoo.org/866881 Signed-off-by: Marc Schiffbauer <mschiff@gentoo.org> net-dns/unbound/Manifest | 2 + net-dns/unbound/unbound-1.16.2.ebuild | 213 ++++++++++++++++++++++++++++++++++ 2 files changed, 215 insertions(+)
Thanks! Please stabilize when ready
Please cleanup, thanks!
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=be530e587fe23ead7b643f547a3d5e3be5623c32 commit be530e587fe23ead7b643f547a3d5e3be5623c32 Author: John Helmert III <ajak@gentoo.org> AuthorDate: 2022-11-22 18:38:32 +0000 Commit: John Helmert III <ajak@gentoo.org> CommitDate: 2022-11-22 18:40:57 +0000 net-dns/unbound: drop 1.13.1-r3, 1.13.2-r1, 1.15.0, 1.16.0 Bug: https://bugs.gentoo.org/872209 Bug: https://bugs.gentoo.org/866881 Signed-off-by: John Helmert III <ajak@gentoo.org> net-dns/unbound/Manifest | 6 - net-dns/unbound/unbound-1.13.1-r3.ebuild | 208 ------------------------------ net-dns/unbound/unbound-1.13.2-r1.ebuild | 210 ------------------------------ net-dns/unbound/unbound-1.15.0.ebuild | 213 ------------------------------- net-dns/unbound/unbound-1.16.0.ebuild | 213 ------------------------------- 5 files changed, 850 deletions(-)
GLSA request filed
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/data/glsa.git/commit/?id=a8c88ef24b83e97ad8e1c9188236da95c32f0fe7 commit a8c88ef24b83e97ad8e1c9188236da95c32f0fe7 Author: GLSAMaker <glsamaker@gentoo.org> AuthorDate: 2022-12-19 02:00:45 +0000 Commit: John Helmert III <ajak@gentoo.org> CommitDate: 2022-12-19 02:04:28 +0000 [ GLSA 202212-02 ] Unbound: Multiple Vulnerabilities Bug: https://bugs.gentoo.org/866881 Bug: https://bugs.gentoo.org/872209 Signed-off-by: GLSAMaker <glsamaker@gentoo.org> Signed-off-by: John Helmert III <ajak@gentoo.org> glsa-202212-02.xml | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+)
GLSA released, all done.
