Use After Free in Samba
CVE-2020-10700
A use-after-free flaw was found in the way samba AD DC LDAP servers, handled 'Paged Results' control is combined with the 'ASQ' control. A malicious user in a samba AD could use this flaw to cause denial of service. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.
Vulnerability class: Use-After-Free
EPSS: 0.020 (78.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Samba
- Fedoraproject Fedora — versions 30, 31, 32
- Opensuse Leap — versions 15.2
- Red Hat Samba — versions All versions before 4.10.15, All versions before 4.11.8, All versions before 4.12.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (x_refsource_MISC, Vendor Advisory)
- secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)
- secalert@redhat.com (x_refsource_FEDORA, 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, Third Party Advisory, x_refsource_GENTOO)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
Frequently asked questions
- What is CVE-2020-10700?
- CVE-2020-10700 is a medium-severity vulnerability in Samba, classified under Use After Free. CVSS score: 5.3/10. Published 2020-05-04.
- How severe is CVE-2020-10700?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2020-10700 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.