ALBA-2021:1083 idm:DL1 bug fix update
A double-free vulnerability in the Kerberos KDC can cause the Identity Management server to crash, resulting in a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is ALBA-2021:1083?
ALBA-2021:1083 is an use after free vulnerability in custodia, published on 6 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
AlmaLinux Identity Management (IdM) is a centralized authentication, identity management, and authorization solution for both traditional and cloud-based enterprise environments.
Bug Fix(es):
IPA krb5kdc crash possible doublefree ipadb_mspac_struct_free finish_process_as_req (BZ#1930562)
krb5kdc is crashing intermittently on IPA server (BZ#1935146)
Which versions are affected by ALBA-2021:1083?
Linux distribution packages (21)
custodia AlmaLinux:8 | All versions | 0.6.0-3.module_el8.5.0+2603+92118e57 |
custodia AlmaLinux:8 | All versions | 0.6.0-3.module_el8.6.0+2881+2f24dc92 |
python3-custodia AlmaLinux:8 | All versions | 0.6.0-3.module_el8.5.0+2603+92118e57 |
python3-custodia AlmaLinux:8 | All versions | 0.6.0-3.module_el8.6.0+2881+2f24dc92 |
python3-jwcrypto AlmaLinux:8 | All versions | 0.5.0-1.module_el8.5.0+2603+92118e57 |
python3-jwcrypto AlmaLinux:8 | All versions | 0.5.0-1.module_el8.6.0+2737+7e73ea90 |
python3-jwcrypto AlmaLinux:8 | All versions | 0.5.0-1.module_el8.6.0+2881+2f24dc92 |
python3-kdcproxy AlmaLinux:8 | All versions | 0.4-5.module_el8.5.0+2603+92118e57 |
python3-kdcproxy AlmaLinux:8 | All versions | 0.4-5.module_el8.6.0+2881+2f24dc92 |
python3-pyusb AlmaLinux:8 | All versions | 1.0.0-9.module_el8.5.0+2603+92118e57 |
python3-pyusb AlmaLinux:8 | All versions | 1.0.0-9.module_el8.6.0+2737+7e73ea90 |
python3-pyusb AlmaLinux:8 | All versions | 1.0.0-9.module_el8.6.0+2881+2f24dc92 |
python3-qrcode AlmaLinux:8 | All versions | 5.1-12.module_el8.5.0+2603+92118e57 |
python3-qrcode AlmaLinux:8 | All versions | 5.1-12.module_el8.6.0+2737+7e73ea90 |
python3-qrcode AlmaLinux:8 | All versions | 5.1-12.module_el8.6.0+2881+2f24dc92 |
python3-qrcode-core AlmaLinux:8 | All versions | 5.1-12.module_el8.5.0+2603+92118e57 |
python3-qrcode-core AlmaLinux:8 | All versions | 5.1-12.module_el8.6.0+2737+7e73ea90 |
python3-qrcode-core AlmaLinux:8 | All versions | 5.1-12.module_el8.6.0+2881+2f24dc92 |
python3-yubico AlmaLinux:8 | All versions | 1.3.2-9.module_el8.5.0+2603+92118e57 |
python3-yubico AlmaLinux:8 | All versions | 1.3.2-9.module_el8.6.0+2737+7e73ea90 |
python3-yubico AlmaLinux:8 | All versions | 1.3.2-9.module_el8.6.0+2881+2f24dc92 |
How do I fix ALBA-2021:1083?
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 ALBA-2021:1083 being exploited?
There is no known exploitation of ALBA-2021:1083 in the wild and no public exploit code.