VulnerabilityModified
CVE-2015-3238
The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password.
MEDIUM 6.5EPSS 2.71%
Does this matter?
Lower severity and a low EPSS score (2.71%). Track it; it rarely justifies an emergency change on its own.
Description
The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password.
- CVSS 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- EPSS
- 2.71% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- linux-pam/linux-pam · oracle/sparc-opl service processor
- Source
- secalert@redhat.com
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161350.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161249.html
- http://rhn.redhat.com/errata/RHSA-2015-1640.htmlVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/06/25/13
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- http://www.securityfocus.com/bid/75428
- http://www.ubuntu.com/usn/USN-2935-1
- http://www.ubuntu.com/usn/USN-2935-2
- http://www.ubuntu.com/usn/USN-2935-3
- https://bugzilla.redhat.com/show_bug.cgi?id=1228571
- https://security.gentoo.org/glsa/201605-05
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-011/?fid=6551Exploit
- https://www.trustwave.com/Resources/SpiderLabs-Blog/Username-Enumeration-against-OpenSSH-SELinux-with-CVE-2015-3238/Exploit
- http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161350.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161249.html
- http://rhn.redhat.com/errata/RHSA-2015-1640.htmlVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/06/25/13
- http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
- http://www.securityfocus.com/bid/75428
- http://www.ubuntu.com/usn/USN-2935-1
- http://www.ubuntu.com/usn/USN-2935-2
- http://www.ubuntu.com/usn/USN-2935-3
- https://bugzilla.redhat.com/show_bug.cgi?id=1228571
- https://security.gentoo.org/glsa/201605-05
- https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-011/?fid=6551Exploit
- https://www.trustwave.com/Resources/SpiderLabs-Blog/Username-Enumeration-against-OpenSSH-SELinux-with-CVE-2015-3238/Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.