Use After Free in Samba
CVE-2020-10730
A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.
Vulnerability class: Use-After-Free
EPSS: 0.024 (83.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Samba
- Debian Debian_linux — versions 9.0, 10.0
- Fedoraproject Fedora — versions 31
- Opensuse Leap — versions 15.1, 15.2
- Redhat Storage — versions 3.0
- N/a Samba — versions All Samba versions before 4.10.17, before 4.11.11 and before 4.12.4
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_MISC)
- secalert@redhat.com (x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2020-10730?
- CVE-2020-10730 is a medium-severity vulnerability in Samba, classified under Use After Free. CVSS score: 6.5/10. Published 2020-07-07.
- How severe is CVE-2020-10730?
- Medium severity. CVSS v3 base score is 6.5 out of 10.