CVE-2020-25681

Name
CVE-2020-25681
Description
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.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1881875
Third Party Advisory https://www.jsof-tech.com/disclosures/dnspooq/
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/
Third Party Advisory https://security.gentoo.org/glsa/202101-17
Third Party Advisory https://www.debian.org/security/2021/dsa-4844
Mailing List https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/
Mailing List https://lists.debian.org/debian-lts-announce/2021/03/msg00027.html
secalert@redhat.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/
secalert@redhat.com https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/
af854a3a-2127-422b-91ae-364da2661108 https://www.kb.cert.org/vuls/id/434904

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* dnsmasq >= None < 2.83

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
dnsmasq edge-main 2.83-r0 None fixed
dnsmasq edge-main 2.80-r5 None possibly vulnerable
dnsmasq edge-main 2.79-r0 None possibly vulnerable
dnsmasq edge-main 2.78-r0 None possibly vulnerable
dnsmasq edge-main 0 None possibly vulnerable
dnsmasq 3.22-main 2.83-r0 None fixed
dnsmasq 3.22-main 2.80-r5 None possibly vulnerable
dnsmasq 3.22-main 2.79-r0 None possibly vulnerable
dnsmasq 3.22-main 2.78-r0 None possibly vulnerable
dnsmasq 3.22-main 0 None possibly vulnerable
dnsmasq 3.21-main 2.83-r0 None fixed
dnsmasq 3.21-main 2.80-r5 None possibly vulnerable
dnsmasq 3.21-main 2.79-r0 None possibly vulnerable
dnsmasq 3.21-main 2.78-r0 None possibly vulnerable
dnsmasq 3.21-main 0 None possibly vulnerable
dnsmasq 3.20-main 2.83-r0 None fixed
dnsmasq 3.20-main 2.80-r5 None possibly vulnerable
dnsmasq 3.20-main 2.79-r0 None possibly vulnerable
dnsmasq 3.20-main 2.78-r0 None possibly vulnerable
dnsmasq 3.20-main 0 None possibly vulnerable
dnsmasq 3.19-main 2.83-r0 None fixed
dnsmasq 3.19-main 2.80-r5 None possibly vulnerable
dnsmasq 3.19-main 2.79-r0 None possibly vulnerable
dnsmasq 3.19-main 2.78-r0 None possibly vulnerable
dnsmasq 3.19-main 0 None possibly vulnerable
dnsmasq 3.18-main 2.83-r0 None fixed
dnsmasq 3.17-main 2.83-r0 None fixed
dnsmasq 3.12-main 2.83-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
dnsmasq 3.11-main 2.83-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
dnsmasq 3.10-main 2.83-r0 Natanael Copa <ncopa@alpinelinux.org> fixed