drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in dnsmasq
Name: |
Mehrere Probleme in dnsmasq |
|
ID: |
RHSA-2021:0245-01 |
|
Distribution: |
Red Hat |
|
Plattformen: |
Red Hat Enterprise Linux |
|
Datum: |
Mo, 25. Januar 2021, 22:19 |
|
Referenzen: |
https://access.redhat.com/security/cve/CVE-2020-25686
https://access.redhat.com/security/cve/CVE-2020-25684
https://access.redhat.com/security/cve/CVE-2020-25685
https://access.redhat.com/security/vulnerabilities/RHSB-2021-001 |
|
Applikationen: |
Dnsmasq |
|
Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
===================================================================== Red Hat Security Advisory
Synopsis: Moderate: dnsmasq security update Advisory ID: RHSA-2021:0245-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0245 Issue date: 2021-01-25 CVE Names: CVE-2020-25684 CVE-2020-25685 CVE-2020-25686 =====================================================================
1. Summary:
An update for dnsmasq is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server AUS (v. 7.3) - x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - x86_64
3. Description:
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.
4. Solution:
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1889686 - CVE-2020-25684 dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker 1889688 - CVE-2020-25685 dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker 1890125 - CVE-2020-25686 dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 7.3):
Source: dnsmasq-2.66-21.el7_3.3.src.rpm
x86_64: dnsmasq-2.66-21.el7_3.3.x86_64.rpm dnsmasq-debuginfo-2.66-21.el7_3.3.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.3):
x86_64: dnsmasq-debuginfo-2.66-21.el7_3.3.x86_64.rpm dnsmasq-utils-2.66-21.el7_3.3.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2020-25684 https://access.redhat.com/security/cve/CVE-2020-25685 https://access.redhat.com/security/cve/CVE-2020-25686 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/security/vulnerabilities/RHSB-2021-001
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
iQIVAwUBYA7f0tzjgjWX9erEAQhkVw//TiQCCQm8LxTdmLfbxkLw/vUMz27NlHGS iTAjLLCeXb4R8KEDNk8jsOJuNMwyxc4xZufGM/9IppuEzp7+kashJ3PUKcD4T/V6 RhEijXJd158qy5JbTRZOANjs7bU5D1C47vI09vKNVQm3rq0sR2QVYWgYKfjab5oJ /MxqYbnKaJG01xhbWPURLSxHqWVyOdadvyZBO6a0yY/i4b9RjDQ4Y7hNYSK7SHOK kxkxFiAaqCIIt1MYE12PUVJZ7vXNLBoanYUkT5tEIFh6gh1piOp4dPVAGsAB+wlF whbqchwD575RuTTiB1vOZBYWnXU8iAlLfqTHFQtPzX0cyFBFgyZE3QpQVnxbVO2L 2JxnBp+KTn1Ztw1wsW+QhW+5XfalC8mwsNkw7//fW++r345CVczl7vBxyNof/tt6 btSu8tI+Nuc7RZhlNYt8SLysgarr8ai7zPgv/Xp2nCf0JF3tGRxPbDlr+MONLrv4 DngN6BaAcbKiieO3DL1tEhhTmyxZ31G2e32C8PRrcqgQPvTncvJhRIV5jHXpOhLG j80OMEdgJtXers7TQRKIdvC/bn119KpfA1cu+yWuS4Xiz1bYFmtWU+k38TCRYnFE 9MRVWSBxIWoS4sDX62E+3mtZtU12BtxWtPBU84U9uC+mD1CiCdIRsw9Z6STKWkYG wFdDuJ0J6QU= =56a7 -----END PGP SIGNATURE-----
-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce
|
|
|
|