dnsmasq: heap overflow in the IPv6 router advertisement code
Published Oct 2, 2017
9.8
CRITICALCVSS 3.0
EPSS 93.31%
Description
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted IPv6 router advertisement request.
Affected products
No data.
Configuration 1
- 14.04
- 16.04
- 17.04
- 7.0
- 7.1
- 9.0
- 7.0
- 7.0
- 7.0
Configuration 2
- ≤ 2.77
No data.
Red Hat Enterprise Linux 7
dnsmasq-0:2.76-2.el7_4.2
Fixed · RHSA-2017:2836
Red Hat Enterprise Linux 7.2 Extended Update Support
dnsmasq-0:2.66-14.el7_2.2
Fixed · RHSA-2017:2837
Red Hat Enterprise Linux 7.3 Extended Update Support
dnsmasq-0:2.66-21.el7_3.2
Fixed · RHSA-2017:2837
Red Hat Enterprise Linux 5
dnsmasq
Not affected
Red Hat Enterprise Linux 6
dnsmasq
Not affected
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
dnsmasq
Not affected
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
dnsmasq
Not affected
Red Hat OpenStack Platform 10 (Newton)
dnsmasq
Not affected
Red Hat OpenStack Platform 11 (Ocata)
dnsmasq
Not affected
Red Hat OpenStack Platform 12 (Pike)
dnsmasq
Not affected
Red Hat OpenStack Platform 8 (Liberty)
dnsmasq
Not affected
Red Hat OpenStack Platform 9 (Mitaka)
dnsmasq
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | dnsmasq-0:2.76-2.el7_4.2 | Fixed | RHSA-2017:2836 |
| Red Hat Enterprise Linux 7.2 Extended Update Support | dnsmasq-0:2.66-14.el7_2.2 | Fixed | RHSA-2017:2837 |
| Red Hat Enterprise Linux 7.3 Extended Update Support | dnsmasq-0:2.66-21.el7_3.2 | Fixed | RHSA-2017:2837 |
| Red Hat Enterprise Linux 5 | dnsmasq | Not affected | n/a |
| Red Hat Enterprise Linux 6 | dnsmasq | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | dnsmasq | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | dnsmasq | Not affected | n/a |
| Red Hat OpenStack Platform 10 (Newton) | dnsmasq | Not affected | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | dnsmasq | Not affected | n/a |
| Red Hat OpenStack Platform 12 (Pike) | dnsmasq | Not affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | dnsmasq | Not affected | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | dnsmasq | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat OpenStack Platform includes the dnsmasq-utils RPM which does not contain this flaw's affected code-paths; Red Hat OpenStack Platform is therefore listed as not affected. However, because all versions of Red Hat OpenStack Platform are based on Red Hat Enterprise Linux, all Red Hat OpenStack Platform users should absolutely upgrade the dnsmasq RPM from Red Hat Enterprise Linux as a matter of urgency using standard update mechanisms (such as 'yum update' or 'openstack overcloud update').
References (24)
- http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html vendor-advisoryx_refsource_SUSEIssue TrackingMailing ListThird Party Advisory
- http://nvidia.custhelp.com/app/answers/detail/a_id/4561 x_refsource_CONFIRM
- http://thekelleys.org.uk/dnsmasq/CHANGELOG x_refsource_CONFIRMRelease NotesVendor Advisory
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=24036ea507862c7b7898b68289c8130f85599c10 x_refsource_CONFIRM
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt x_refsource_CONFIRM
- http://www.debian.org/security/2017/dsa-3989 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/101085 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039474 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3430-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-3430-2 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2836 vendor-advisoryx_refsource_REDHATPatchThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2837 vendor-advisoryx_refsource_REDHATPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-14492 Vendor Advisory
- https://access.redhat.com/security/vulnerabilities/3199382 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1495410 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-14492
- https://security.gentoo.org/glsa/201710-27 vendor-advisoryx_refsource_GENTOO
- https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html x_refsource_MISCThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-14492
- https://www.exploit-db.com/exploits/42942/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.kb.cert.org/vuls/id/973527 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
- https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html mailing-listx_refsource_MLIST
- https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html mailing-listx_refsource_MLIST
- https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq x_refsource_CONFIRM
Change history (0)
No recorded changes yet.