CVE-2017-12132
Published: 1 August 2017
The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
eglibc Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Needed
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
glibc Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(2.26-0ubuntu2)
|
| bionic |
Not vulnerable
(2.26-0ubuntu2)
|
|
| cosmic |
Not vulnerable
(2.26-0ubuntu2)
|
|
| disco |
Not vulnerable
(2.26-0ubuntu2)
|
|
| eoan |
Not vulnerable
(2.26-0ubuntu2)
|
|
| focal |
Not vulnerable
(2.26-0ubuntu2)
|
|
| groovy |
Not vulnerable
(2.26-0ubuntu2)
|
|
| hirsute |
Not vulnerable
(2.26-0ubuntu2)
|
|
| impish |
Not vulnerable
(2.26-0ubuntu2)
|
|
| jammy |
Not vulnerable
(2.26-0ubuntu2)
|
|
| kinetic |
Not vulnerable
(2.26-0ubuntu2)
|
|
| lunar |
Not vulnerable
(2.26-0ubuntu2)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.26)
|
|
| xenial |
Released
(2.23-0ubuntu11.3+esm3)
|
|
| zesty |
Ignored
(reached end-of-life)
|
|
|
Patches: upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e14a27723cc3a154d67f3f26e719d08c0ba9ad25 (master) upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=47db584c74e2bbcf1ba55e62d949c1a738da5e0a (2.25) |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.9 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |