AmazonALAS-2015-589Medium: pam
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
0.009 Low
EPSS
Percentile
82.3%
Issue Overview:
It was discovered that the _unix_run_helper_binary() function of PAM’s unix_pam module could write to a blocking pipe, possibly causing the function to become unresponsive. An attacker able to supply large passwords to the unix_pam module could use this flaw to enumerate valid user accounts, or cause a denial of service on the system. (CVE-2015-3238)
Affected Packages:
pam
Issue Correction:
Run yum update pam to update your system.
New Packages:
i686:
pam-devel-1.1.8-12.32.amzn1.i686
pam-1.1.8-12.32.amzn1.i686
pam-debuginfo-1.1.8-12.32.amzn1.i686
src:
pam-1.1.8-12.32.amzn1.src
x86_64:
pam-devel-1.1.8-12.32.amzn1.x86_64
pam-1.1.8-12.32.amzn1.x86_64
pam-debuginfo-1.1.8-12.32.amzn1.x86_64
Additional References
Red Hat: CVE-2015-3238
Mitre: CVE-2015-3238
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Amazon Linux | 1 | i686 | pam-devel | < 1.1.8-12.32.amzn1 | pam-devel-1.1.8-12.32.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | pam | < 1.1.8-12.32.amzn1 | pam-1.1.8-12.32.amzn1.i686.rpm |
| Amazon Linux | 1 | i686 | pam-debuginfo | < 1.1.8-12.32.amzn1 | pam-debuginfo-1.1.8-12.32.amzn1.i686.rpm |
| Amazon Linux | 1 | x86_64 | pam-devel | < 1.1.8-12.32.amzn1 | pam-devel-1.1.8-12.32.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | pam | < 1.1.8-12.32.amzn1 | pam-1.1.8-12.32.amzn1.x86_64.rpm |
| Amazon Linux | 1 | x86_64 | pam-debuginfo | < 1.1.8-12.32.amzn1 | pam-debuginfo-1.1.8-12.32.amzn1.x86_64.rpm |
Related
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
0.009 Low
EPSS
Percentile
82.3%