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Test ID:1.3.6.1.4.1.25623.1.0.883318
Category:CentOS Local Security Checks
Title:CentOS: Security Advisory for dnsmasq (CESA-2021:0153)
Summary:The remote host is missing an update for the 'dnsmasq'; package(s) announced via the CESA-2021:0153 advisory.
Description:Summary:
The remote host is missing an update for the 'dnsmasq'
package(s) announced via the CESA-2021:0153 advisory.

Vulnerability Insight:
The dnsmasq packages contain Dnsmasq, a lightweight DNS (Domain Name
Server) forwarder and DHCP (Dynamic Host Configuration Protocol) server.

Security Fix(es):

* dnsmasq: loose address/port check in reply_query() makes forging replies
easier for an off-path attacker (CVE-2020-25684)

* dnsmasq: loose query name check in reply_query() makes forging replies
easier for an off-path attacker (CVE-2020-25685)

* dnsmasq: multiple queries forwarded for the same name makes forging
replies easier for an off-path attacker (CVE-2020-25686)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Affected Software/OS:
'dnsmasq' package(s) on CentOS 7.

Solution:
Please install the updated package(s).

CVSS Score:
4.3

CVSS Vector:
AV:N/AC:M/Au:N/C:N/I:P/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-25684
Debian Security Information: DSA-4844 (Google Search)
https://www.debian.org/security/2021/dsa-4844
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QGB7HL3OWHTLEPSMLDGOMXQKG3KM2QME/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/
https://security.gentoo.org/glsa/202101-17
https://www.arista.com/en/support/advisories-notices/security-advisories/12135-security-advisory-61
https://bugzilla.redhat.com/show_bug.cgi?id=1889686
https://www.jsof-tech.com/disclosures/dnspooq/
https://lists.debian.org/debian-lts-announce/2021/03/msg00027.html
Common Vulnerability Exposure (CVE) ID: CVE-2020-25685
https://bugzilla.redhat.com/show_bug.cgi?id=1889688
Common Vulnerability Exposure (CVE) ID: CVE-2020-25686
https://bugzilla.redhat.com/show_bug.cgi?id=1890125
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