CVE-2020-10700 Use after free in samba

What is CVE-2020-10700?

CVE-2020-10700 is a medium-severity use after free vulnerability in Fedoraproject Fedora, published on 4 May 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-416

Which versions are affected by CVE-2020-10700?

It affects 3 products.

Products include Fedoraproject Fedora, Opensuse Leap, Samba Samba.

How do I fix CVE-2020-10700?

Upgrade to a fixed version.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2020-10700 being exploited?

There is no known exploitation of CVE-2020-10700 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
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• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2020-10700, DEBIAN-CVE-2020-10700, ECHO-03bd-5b98-b7c0, GHSA-7g79-5vjp-6w3f, UBUNTU-CVE-2020-10700.