CVE-2016-3075
Published: 31 March 2016
Stack-based buffer overflow in the nss_dns implementation of the getnetbyname function in GNU C Library (aka glibc) before 2.24 allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a long name.
From the Ubuntu Security Team
Florian Weimer discovered that the getnetbyname implementation in the GNU C Library did not properly handle long names passed as arguments. An attacker could use to cause a denial of service (stack exhaustion leading to an application crash).
Priority
Status
| Package | Release | Status |
|---|---|---|
|
eglibc Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
| precise |
Released
(2.15-0ubuntu10.14)
|
|
| trusty |
Released
(2.19-0ubuntu6.8)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
glibc Launchpad, Ubuntu, Debian |
upstream |
Released
(2.22-6)
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| wily |
Released
(2.21-0ubuntu4.2)
|
|
| xenial |
Not vulnerable
(2.23-0ubuntu3)
|
|
| yakkety |
Not vulnerable
|
|
| zesty |
Not vulnerable
|
|
|
Patches: upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=317b199b4aff8cfa27f2302ab404d2bb5032b9a4 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |