CVE-2020-25681
CVE-2020-25681
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVSS 8.1 · Élevée · EPSS 84,1% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system
Produits et versions concernés
dnsmasq
- Versions du logiciel
- dnsmasq 2.83: Concernée
Aucun correctif publié
dnsmasq Debian:12
- Plages de versions concernées
- ECOSYSTEM: < 2.83-1
Mettez à jour vers 2.83-1
dnsmasq Debian:13
- Plages de versions concernées
- ECOSYSTEM: < 2.83-1
Mettez à jour vers 2.83-1
dnsmasq Debian:14
- Plages de versions concernées
- ECOSYSTEM: < 2.83-1
Mettez à jour vers 2.83-1
dnsmasq Ubuntu:16.04:LTS
- Versions du logiciel
- 2.75-1
- 2.75-1ubuntu0.16.04.1
- 2.75-1ubuntu0.16.04.2
- 2.75-1ubuntu0.16.04.3
- 2.75-1ubuntu0.16.04.4
- 2.75-1ubuntu0.16.04.5
- Plages de versions concernées
- ECOSYSTEM: < 2.75-1ubuntu0.16.04.7
Mettez à jour vers 2.75-1ubuntu0.16.04.7
dnsmasq Ubuntu:18.04:LTS
- Versions du logiciel
- 2.78-1
- 2.78-3
- 2.79-1
- Plages de versions concernées
- ECOSYSTEM: < 2.79-1ubuntu0.2
Mettez à jour vers 2.79-1ubuntu0.2
dnsmasq Ubuntu:20.04:LTS
- Versions du logiciel
- 2.80-1ubuntu2
- 2.80-1ubuntu4
- 2.80-1.1ubuntu1
- Plages de versions concernées
- ECOSYSTEM: < 2.80-1.1ubuntu1.2
Mettez à jour vers 2.80-1.1ubuntu1.2
Sources originales
- https://www.jsof-tech.com/disclosures/dnspooq/
- https://bugzilla.redhat.com/show_bug.cgi?id=1881875
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/
- https://security.gentoo.org/glsa/202101-17
- https://www.debian.org/security/2021/dsa-4844
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/
- https://lists.debian.org/debian-lts-announce/2021/03/msg00027.html
- https://www.kb.cert.org/vuls/id/434904
- https://nvd.nist.gov/vuln/detail/CVE-2020-25681