Ubuntu.comUB:CVE-2018-19591CVE-2018-19591
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
77.6%
In the GNU C Library (aka glibc or libc6) through 2.28, attempting to
resolve a crafted hostname via getaddrinfo() leads to the allocation of a
socket descriptor that is not closed. This is related to the
if_nametoindex() function.
Bugs
- <https://sourceware.org/bugzilla/show_bug.cgi?id=23927>
- <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=914837>
Notes
| Author | Note |
|---|---|
| ebarretto | In trusty and precise the code that introduced the issue is not present. |
| sbeattie | reproducer testcase in upstream bug report introduced in 2180fee114b778515b3f560e5ff1e795282e60b0 (2.27 cycle) |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
77.6%