CVE-2019-6488
Published: 18 January 2019
The string component in the GNU C Library (aka glibc or libc6) through 2.28, when running on the x32 architecture, incorrectly attempts to use a 64-bit register for size_t in assembly codes, which can lead to a segmentation fault or possibly unspecified other impact, as demonstrated by a crash in __memmove_avx_unaligned_erms in sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S during a memcpy.
Notes
Author | Note |
---|---|
mdeslaur | only affects x32 we will not be fixing this issue in Ubuntu stable releases, marking as ignored |
Priority
Status
Package | Release | Status |
---|---|---|
eglibc Launchpad, Ubuntu, Debian |
upstream |
Needs triage
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
trusty |
Ignored
|
|
xenial |
Does not exist
|
|
glibc Launchpad, Ubuntu, Debian |
bionic |
Ignored
|
cosmic |
Ignored
(end of life)
|
|
disco |
Not vulnerable
(2.29-0ubuntu2)
|
|
eoan |
Not vulnerable
(2.29-0ubuntu2)
|
|
focal |
Not vulnerable
(2.29-0ubuntu2)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(2.29)
|
|
xenial |
Ignored
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |