CVE-2022-32746 Use after free in samba
A use-after-free flaw in Samba's AD DC audit logging allows attackers to potentially execute code or escalate privileges when modifying privileged attributes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-32746?
CVE-2022-32746 is a medium-severity use after free vulnerability in Samba Samba, published on 25 Aug 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in the Samba AD LDAP server. The AD DC database audit logging module can access LDAP message values freed by a preceding database module, resulting in a use-after-free issue. This issue is only possible when modifying certain privileged attributes, such as userAccountControl.
Weakness: CWE-416
Which versions are affected by CVE-2022-32746?
It affects 1 product.
Linux distribution packages (39)
ldb-tools AlmaLinux:8 | All versions | 2.5.2-2.el8 |
libldb AlmaLinux:8 | All versions | 2.5.2-2.el8 |
libldb-devel AlmaLinux:8 | All versions | 2.5.2-2.el8 |
python-ldb-devel-common AlmaLinux:8 | All versions | 2.5.2-2.el8 |
python3-ldb AlmaLinux:8 | All versions | 2.5.2-2.el8 |
python3-ldb-devel AlmaLinux:8 | All versions | 2.5.2-2.el8 |
ldb-tools AlmaLinux:9 | All versions | 2.5.2-1.el9 |
libldb AlmaLinux:9 | All versions | 2.5.2-1.el9 |
libldb-devel AlmaLinux:9 | All versions | 2.5.2-1.el9 |
python3-ldb AlmaLinux:9 | All versions | 2.5.2-1.el9 |
ldb-tools Red Hat:enterprise_linux:8::baseos | All versions | 0:2.5.2-2.el8 |
ldb-tools-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:2.5.2-2.el8 |
libldb Red Hat:enterprise_linux:8::baseos | All versions | 0:2.5.2-2.el8 |
libldb-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:2.5.2-2.el8 |
libldb-debugsource Red Hat:enterprise_linux:8::baseos | All versions | 0:2.5.2-2.el8 |
libldb-devel Red Hat:enterprise_linux:8::baseos | All versions | 0:2.5.2-2.el8 |
python3-ldb Red Hat:enterprise_linux:8::baseos | All versions | 0:2.5.2-2.el8 |
python3-ldb-debuginfo Red Hat:enterprise_linux:8::baseos | All versions | 0:2.5.2-2.el8 |
ldb-tools-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:2.5.2-2.el8 |
libldb-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:2.5.2-2.el8 |
libldb-debugsource Red Hat:enterprise_linux:8::crb | All versions | 0:2.5.2-2.el8 |
python-ldb-devel-common Red Hat:enterprise_linux:8::crb | All versions | 0:2.5.2-2.el8 |
python3-ldb-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:2.5.2-2.el8 |
python3-ldb-devel Red Hat:enterprise_linux:8::crb | All versions | 0:2.5.2-2.el8 |
ldb-tools Red Hat:enterprise_linux:9::baseos | All versions | 0:2.5.2-1.el9 |
ldb-tools-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:2.5.2-1.el9 |
libldb Red Hat:enterprise_linux:9::baseos | All versions | 0:2.5.2-1.el9 |
libldb-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:2.5.2-1.el9 |
libldb-debugsource Red Hat:enterprise_linux:9::baseos | All versions | 0:2.5.2-1.el9 |
python3-ldb Red Hat:enterprise_linux:9::baseos | All versions | 0:2.5.2-1.el9 |
python3-ldb-debuginfo Red Hat:enterprise_linux:9::baseos | All versions | 0:2.5.2-1.el9 |
ldb-tools-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 0:2.5.2-1.el9 |
libldb-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 0:2.5.2-1.el9 |
libldb-debugsource Red Hat:enterprise_linux:9::crb | All versions | 0:2.5.2-1.el9 |
libldb-devel Red Hat:enterprise_linux:9::crb | All versions | 0:2.5.2-1.el9 |
python3-ldb-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 0:2.5.2-1.el9 |
libldb Rocky Linux:8 | All versions | 0:2.5.2-2.el8 |
libldb Rocky Linux:9 | All versions | 0:2.5.2-1.el9 |
ldb openSUSE:Tumbleweed | All versions | 2.5.2-1.1 |
Products include Samba Samba.
How do I fix CVE-2022-32746?
Apply the vendor's patch.
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-2022-32746 being exploited?
There is no known exploitation of CVE-2022-32746 in the wild and no public exploit code.
Other vulnerabilities in Samba Samba
Sources
Also known as ALPINE-CVE-2022-32746, ALSA-2022:7730, ALSA-2022:8318, AZL-10707, AZL-37015, AZL-45138 and 10 more.