CVE-2015-5370
CVE-2015-5370 is a medium-severity vulnerability in Samba with a CVSS 3.x base score of 5.9. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: Medium (CVSS 3.x base score 5.9)
- CVSS v2: 4.3
- EPSS exploit prediction: 19% (97th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Samba
- Published:
- Last modified:
Description
Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not properly implement the DCE-RPC layer, which allows remote attackers to perform protocol-downgrade attacks, cause a denial of service (application crash or CPU consumption), or possibly execute arbitrary code on a client system via unspecified vectors.
Frequently asked questions
- What is CVE-2015-5370?
- Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not properly implement the DCE-RPC layer, which allows remote attackers to perform protocol-downgrade attacks, cause a denial of service (application crash or CPU consumption), or possibly execute arbitrary code on a client system via unspecified vectors.
- How severe is CVE-2015-5370?
- CVE-2015-5370 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2015-5370 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2015-5370?
- CVE-2015-5370 primarily affects Samba. In total, 101 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2015-5370?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2015-5370 published?
- CVE-2015-5370 was published on 2016-04-25 and last updated on 2026-06-17.
References
- http://badlock.org/
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
- http://rhn.redhat.com/errata/RHSA-2016-0611.html
- http://rhn.redhat.com/errata/RHSA-2016-0612.html
- http://rhn.redhat.com/errata/RHSA-2016-0613.html
- http://rhn.redhat.com/errata/RHSA-2016-0614.html
- http://rhn.redhat.com/errata/RHSA-2016-0618.html
- http://rhn.redhat.com/errata/RHSA-2016-0619.html
- http://rhn.redhat.com/errata/RHSA-2016-0620.html
- http://rhn.redhat.com/errata/RHSA-2016-0624.html
- http://www.debian.org/security/2016/dsa-3548
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securitytracker.com/id/1035533
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012
- http://www.ubuntu.com/usn/USN-2950-1
- http://www.ubuntu.com/usn/USN-2950-2
- http://www.ubuntu.com/usn/USN-2950-3
- http://www.ubuntu.com/usn/USN-2950-4
- http://www.ubuntu.com/usn/USN-2950-5
- https://bto.bluecoat.com/security-advisory/sa122
Affected products (101)
- cpe:2.3:a:samba:samba:3.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.1:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.2:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.3:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.4:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.5:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.6:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.7:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.8:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.9:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.10:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.11:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.12:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.13:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.14:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.15:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.16:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.17:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.18:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.19:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.20:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.21:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.22:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.23:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.24:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:3.6.25:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.6:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.7:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.8:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.9:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.10:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.11:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.12:*:*:*:*:*:*:*
- cpe:2.3:a:samba:samba:4.0.13:*:*:*:*:*:*:*
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