AmazonALAS-2020-1414Medium: keepalived
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
3.3 Low
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:N/I:P/A:P
0.0004 Low
EPSS
Percentile
5.2%
Issue Overview:
keepalived 2.0.8 didn’t check for pathnames with symlinks when writing data to a temporary file upon a call to PrintData or PrintStats. This allowed local users to overwrite arbitrary files if fs.protected_symlinks is set to 0, as demonstrated by a symlink from /tmp/keepalived.data or /tmp/keepalived.stats to /etc/passwd. (CVE-2018-19044 )
Affected Packages:
keepalived
Issue Correction:
Run yum update keepalived to update your system.
New Packages:
i686:
keepalived-debuginfo-1.2.13-8.5.amzn1.i686
keepalived-1.2.13-8.5.amzn1.i686
src:
keepalived-1.2.13-8.5.amzn1.src
x86_64:
keepalived-debuginfo-1.2.13-8.5.amzn1.x86_64
keepalived-1.2.13-8.5.amzn1.x86_64
Additional References
Red Hat: CVE-2018-19044
Mitre: CVE-2018-19044
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Amazon Linux | 1 | i686 | keepalived-debuginfo | < 1.2.13-8.5.amzn1 | keepalived-debuginfo-1.2.13-8.5.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | keepalived | < 1.2.13-8.5.amzn1 | keepalived-1.2.13-8.5.amzn1.i686.rpm |
| Amazon Linux | 1 | x86_64 | keepalived-debuginfo | < 1.2.13-8.5.amzn1 | keepalived-debuginfo-1.2.13-8.5.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | keepalived | < 1.2.13-8.5.amzn1 | keepalived-1.2.13-8.5.amzn1.x86_64.rpm |
Related
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
3.3 Low
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:M/Au:N/C:N/I:P/A:P
0.0004 Low
EPSS
Percentile
5.2%