Lucene search

K
cvelistRedhatCVELIST:CVE-2019-14861
HistoryDec 10, 2019 - 10:19 p.m.

CVE-2019-14861

2019-12-1022:19:05
CWE-276
redhat
www.cve.org
10
samba
cve-2019-14861
security issue

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

5.9

Confidence

High

EPSS

0.01

Percentile

84.1%

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.

CNA Affected

[
  {
    "vendor": "Red Hat",
    "product": "samba",
    "versions": [
      {
        "version": "all versions 4.11.x before 4.11.3",
        "status": "affected"
      },
      {
        "version": "all versions 4.10.x before 4.10.11",
        "status": "affected"
      },
      {
        "version": "all versions 4.x.x before 4.9.17",
        "status": "affected"
      }
    ]
  }
]

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

AI Score

5.9

Confidence

High

EPSS

0.01

Percentile

84.1%