CVE-2015-8899
published 2016-06-30CVE-2015-8899: Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record…
PriorityP432high7.5CVSS 3.0
AVNACLPRNUINSUCNINAH
EPSS
2.42%
82.1th percentile
Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record defined locally.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | dnsmasq | < dnsmasq 2.76-1 (bookworm) | dnsmasq 2.76-1 (bookworm) |
| thekelleys | dnsmasq | <= 2.75 | — |
| thekelleys | dnsmasq | >= 0 < 2.76-1 | 2.76-1 |
| thekelleys | dnsmasq | >= 0 < 2.76-1 | 2.76-1 |
| thekelleys | dnsmasq | >= 0 < 2.76-1 | 2.76-1 |
| thekelleys | dnsmasq | >= 0 < 2.76-1 | 2.76-1 |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
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Ubuntu
Dnsmasq vulnerability
vendor_ubuntu·2016-06-20
CVE-2015-8899 Dnsmasq vulnerability
Title: Dnsmasq vulnerability
Summary: Dnsmasq could be made to crash if it received specially crafted network
traffic.
Edwin Török discovered that Dnsmasq incorrectly handled certain CNAME
responses. A remote attacker could use this issue to cause Dnsmasq to
crash, resulting in a denial of service.
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
Red Hat
dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts
vendor_redhat·2015-11-14·CVSS 7.5
CVE-2015-8899 [HIGH] CWE-476 dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts
dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts
Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record defined locally.
A NULL pointer dereference flaw was found in dmsmasq in the cache_insert() function. An attacker could exploit this flaw by locally defining an A or AAAA record in the /etc/hosts file that is not in the upstream server. When the upstream server sends a reply that the same name is empty, dmsmasq crashes (denial of service).
Package: dnsmasq (Red Hat Enterprise Linux 5) - Not affected
Package: dnsmasq (Red Hat Enterprise Linux 6) - Not affected
Package: dnsmasq (Red Hat Enterprise Linux 7) - Not affected
Package: dnsmasq (Red Hat Enter
Debian
CVE-2015-8899: dnsmasq - Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) v...
vendor_debian·2015·CVSS 7.5
CVE-2015-8899 [HIGH] CVE-2015-8899: dnsmasq - Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) v...
Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record defined locally.
Scope: local
bookworm: resolved (fixed in 2.76-1)
bullseye: resolved (fixed in 2.76-1)
forky: resolved (fixed in 2.76-1)
sid: resolved (fixed in 2.76-1)
trixie: resolved (fixed in 2.76-1)
GHSA
GHSA-f299-rcx3-c9vw: Dnsmasq before 2
ghsa_unreviewed·2022-05-17
CVE-2015-8899 [HIGH] CWE-20 GHSA-f299-rcx3-c9vw: Dnsmasq before 2
Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record defined locally.
OSV
CVE-2015-8899: Dnsmasq before 2
osv·2016-06-30·CVSS 7.5
CVE-2015-8899 [HIGH] CVE-2015-8899: Dnsmasq before 2
Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record defined locally.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2015-8899 dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts [fedora-all]
bugzilla·2016-06-06·CVSS 7.5
CVE-2015-8899 [HIGH] CVE-2015-8899 dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts [fedora-all]
CVE-2015-8899 dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affect
Bugzilla
CVE-2015-8899 dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts
bugzilla·2016-06-06·CVSS 7.5
CVE-2015-8899 [HIGH] CVE-2015-8899 dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts
CVE-2015-8899 dnsmasq: Denial-of-service when empty address from DNS overlays A record from hosts
A vulnerability was found in dmsmasq. A Denial-of-service will occur when an A or AAAA record is defined locally, in a hosts file, and an upstream server sends a reply that the same name is empty.
Upstream bug:
http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2016q2/010479.html
Upstream fix:
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=41a8d9e99be9f2cc8b02051dd322cb45e0faac87
Discussion:
Created dnsmasq tracking bugs for this issue:
Affects: fedora-all [bug 1343073]
---
Low impact as the worst this can cause is a denial of service.
Vulnerable code was introduced in v2.73: all RHEL versions ship earlier
versions of dnsmasq which are not affected by this issue.
-
http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2016q2/010479.htmlhttp://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2016q2/010505.htmlhttp://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=41a8d9e99be9f2cc8b02051dd322cb45e0faac87http://www.openwall.com/lists/oss-security/2016/06/03/7http://www.openwall.com/lists/oss-security/2016/06/04/2http://www.securityfocus.com/bid/91031http://www.securitytracker.com/id/1036045http://www.ubuntu.com/usn/USN-3009-1http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2016q2/010479.htmlhttp://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2016q2/010505.htmlhttp://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=41a8d9e99be9f2cc8b02051dd322cb45e0faac87http://www.openwall.com/lists/oss-security/2016/06/03/7http://www.openwall.com/lists/oss-security/2016/06/04/2http://www.securityfocus.com/bid/91031http://www.securitytracker.com/id/1036045http://www.ubuntu.com/usn/USN-3009-1
2016-06-30
Published