Ubuntu.comUB:CVE-2017-17053CVE-2017-17053
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.3%
The init_new_context function in arch/x86/include/asm/mmu_context.h in the
Linux kernel before 4.12.10 does not correctly handle errors from LDT table
allocation when forking a new process, allowing a local attacker to achieve
a use-after-free or possibly have unspecified other impact by running a
specially crafted program. This vulnerability only affected kernels built
with CONFIG_MODIFY_LDT_SYSCALL=y.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-azure | < 4.13.0-1005.7 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-gcp | < 4.13.0-1002.5 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-hwe | < 4.13.0-26.29~16.04.2 | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-hwe-edge | < 4.18.0-8.9~18.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-hwe-edge | < 4.13.0-26.29~16.04.2 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-kvm | < any | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-lts-xenial | < any | UNKNOWN |
References
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccd5b3235180eef3cfec337df1c8554ab151b5cc
github.com/torvalds/linux/commit/ccd5b3235180eef3cfec337df1c8554ab151b5cc
launchpad.net/bugs/cve/CVE-2017-17053
nvd.nist.gov/vuln/detail/CVE-2017-17053
security-tracker.debian.org/tracker/CVE-2017-17053
www.cve.org/CVERecord?id=CVE-2017-17053
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.10
Related
7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.3%