CVE-2014-9761
Published: 19 April 2016
Multiple stack-based buffer overflows in the GNU C Library (aka glibc or libc6) before 2.23 allow context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a long argument to the (1) nan, (2) nanf, or (3) nanl function.
From the Ubuntu Security Team
Joseph Myers discovered that the GNU C Library did not properly handle long arguments to functions returning a representation of Not a Number (NaN). An attacker could use this to cause a denial of service (stack exhaustion leading to an application crash) or possibly execute arbitrary code.
Notes
| Author | Note |
|---|---|
| tyhicks | USN-2985-1 initially fixed this issue but it caused a regression and the change was backed out by USN-2985-2. This issue will be fixed in a future update. |
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
|
|
| mantic |
Does not exist
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Needed
|
|
| upstream |
Needed
|
|
| vivid |
Does not exist
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
glibc Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(2.23-0ubuntu1)
|
| bionic |
Not vulnerable
(2.23-0ubuntu1)
|
|
| cosmic |
Not vulnerable
(2.23-0ubuntu1)
|
|
| disco |
Not vulnerable
(2.23-0ubuntu1)
|
|
| eoan |
Not vulnerable
(2.23-0ubuntu1)
|
|
| focal |
Not vulnerable
(2.23-0ubuntu1)
|
|
| groovy |
Not vulnerable
(2.23-0ubuntu1)
|
|
| hirsute |
Not vulnerable
(2.23-0ubuntu1)
|
|
| impish |
Not vulnerable
(2.23-0ubuntu1)
|
|
| jammy |
Not vulnerable
(2.23-0ubuntu1)
|
|
| kinetic |
Not vulnerable
(2.23-0ubuntu1)
|
|
| lunar |
Not vulnerable
(2.23-0ubuntu1)
|
|
| mantic |
Not vulnerable
(2.23-0ubuntu1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needed
|
|
| vivid |
Ignored
(end of life)
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Not vulnerable
(2.23-0ubuntu1)
|
|
| yakkety |
Not vulnerable
(2.23-0ubuntu1)
|
|
| zesty |
Not vulnerable
(2.23-0ubuntu1)
|
|
|
Patches: upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=e02cabecf0d025ec4f4ddee290bdf7aadb873bb3 upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=8f5e8b01a1da2a207228f2072c934fa5918554b8 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |