CVE-2021-3480
A flaw was found in slapi-nis in versions before 0.56.7. A NULL pointer dereference during the parsing of the Binding DN could allow an unauthenticated attacker to crash the 389-ds-base directory
02 Description
A flaw was found in slapi-nis in versions before 0.56.7. A NULL pointer dereference during the parsing of the Binding DN could allow an unauthenticated attacker to crash the 389-ds-base directory
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.70% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 76.7% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-05-20 12:14Z5 YR AGO
- Last updated
- 2024-08-03 16:53Z2 YR AGO
- Reserved
- 2021-03-30
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-476NULL Pointer DereferenceBase
- Data version
- 5.1
- Document digest
- 601435f0856c281dd09a2d1d954f83165b391f2dc25405828f76dbb68fa29bc9
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1944640
- lists.fedoraproject.orgFEDORA-2021-f93243d461https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MXMOMPTZTGOVFOZUUNXHOVCAYIPST74W/
- lists.fedoraproject.orgFEDORA-2021-a4ee3426c4https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GVQCDRQRFHXVR3Z3FQYM3UMC7QZUDDRJ/
07 Fixed in
AlmaLinux 8
- bind-dyndb-ldap Fixed in 11.6-2.module_el8.5.0+2603+92118e57
- custodia Fixed
A version is affected if any line below covers it.
- Affected before 0.6.0-3.module_el8.5.0+2603+92118e57
- Affected before 0.6.0-3.module_el8.6.0+2881+2f24dc92
- opendnssec Fixed
A version is affected if any line below covers it.
- Affected before 2.1.7-1.module_el8.5.0+2603+92118e57
- Affected before 2.1.7-1.module_el8.6.0+2881+2f24dc92
- python3-custodia Fixed
A version is affected if any line below covers it.
- Affected before 0.6.0-3.module_el8.5.0+2603+92118e57
- Affected before 0.6.0-3.module_el8.6.0+2881+2f24dc92
- python3-jwcrypto Fixed
A version is affected if any line below covers it.
- Affected before 0.5.0-1.module_el8.5.0+2603+92118e57
- Affected before 0.5.0-1.module_el8.6.0+2737+7e73ea90
- Affected before 0.5.0-1.module_el8.6.0+2881+2f24dc92
- python3-kdcproxy Fixed
A version is affected if any line below covers it.
- Affected before 0.4-5.module_el8.5.0+2603+92118e57
- Affected before 0.4-5.module_el8.6.0+2881+2f24dc92
- python3-pyusb Fixed
A version is affected if any line below covers it.
- Affected before 1.0.0-9.module_el8.5.0+2603+92118e57
- Affected before 1.0.0-9.module_el8.6.0+2737+7e73ea90
- Affected before 1.0.0-9.module_el8.6.0+2881+2f24dc92
- python3-qrcode Fixed
A version is affected if any line below covers it.
- Affected before 5.1-12.module_el8.5.0+2603+92118e57
- Affected before 5.1-12.module_el8.6.0+2737+7e73ea90
- Affected before 5.1-12.module_el8.6.0+2881+2f24dc92
- python3-qrcode-core Fixed
A version is affected if any line below covers it.
- Affected before 5.1-12.module_el8.5.0+2603+92118e57
- Affected before 5.1-12.module_el8.6.0+2737+7e73ea90
- Affected before 5.1-12.module_el8.6.0+2881+2f24dc92
- python3-yubico Fixed
A version is affected if any line below covers it.
- Affected before 1.3.2-9.module_el8.5.0+2603+92118e57
- Affected before 1.3.2-9.module_el8.6.0+2737+7e73ea90
- Affected before 1.3.2-9.module_el8.6.0+2881+2f24dc92
- softhsm Fixed
A version is affected if any line below covers it.
- Affected before 2.6.0-5.module_el8.5.0+2603+92118e57
- Affected before 2.6.0-5.module_el8.6.0+2881+2f24dc92
- softhsm-devel Fixed
A version is affected if any line below covers it.
- Affected before 2.6.0-5.module_el8.5.0+2603+92118e57
- Affected before 2.6.0-5.module_el8.6.0+2881+2f24dc92
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- bind-dyndb-ldap Fixed in 11.6-2.module_el8.5.0+2603+92118e57
- custodia Fixed
A version is affected if any line below covers it.
- Affected before 0.6.0-3.module_el8.5.0+2603+92118e57
- Affected before 0.6.0-3.module_el8.6.0+2881+2f24dc92
- opendnssec Fixed
A version is affected if any line below covers it.
- Affected before 2.1.7-1.module_el8.5.0+2603+92118e57
- Affected before 2.1.7-1.module_el8.6.0+2881+2f24dc92
- python3-custodia Fixed
A version is affected if any line below covers it.
- Affected before 0.6.0-3.module_el8.5.0+2603+92118e57
- Affected before 0.6.0-3.module_el8.6.0+2881+2f24dc92
- python3-jwcrypto Fixed
A version is affected if any line below covers it.
- Affected before 0.5.0-1.module_el8.5.0+2603+92118e57
- Affected before 0.5.0-1.module_el8.6.0+2737+7e73ea90
- Affected before 0.5.0-1.module_el8.6.0+2881+2f24dc92
- python3-kdcproxy Fixed
A version is affected if any line below covers it.
- Affected before 0.4-5.module_el8.5.0+2603+92118e57
- Affected before 0.4-5.module_el8.6.0+2881+2f24dc92
- python3-pyusb Fixed
A version is affected if any line below covers it.
- Affected before 1.0.0-9.module_el8.5.0+2603+92118e57
- Affected before 1.0.0-9.module_el8.6.0+2737+7e73ea90
- Affected before 1.0.0-9.module_el8.6.0+2881+2f24dc92
- python3-qrcode Fixed
A version is affected if any line below covers it.
- Affected before 5.1-12.module_el8.5.0+2603+92118e57
- Affected before 5.1-12.module_el8.6.0+2737+7e73ea90
- Affected before 5.1-12.module_el8.6.0+2881+2f24dc92
- python3-qrcode-core Fixed
A version is affected if any line below covers it.
- Affected before 5.1-12.module_el8.5.0+2603+92118e57
- Affected before 5.1-12.module_el8.6.0+2737+7e73ea90
- Affected before 5.1-12.module_el8.6.0+2881+2f24dc92
- python3-yubico Fixed
A version is affected if any line below covers it.
- Affected before 1.3.2-9.module_el8.5.0+2603+92118e57
- Affected before 1.3.2-9.module_el8.6.0+2737+7e73ea90
- Affected before 1.3.2-9.module_el8.6.0+2881+2f24dc92
- softhsm Fixed
A version is affected if any line below covers it.
- Affected before 2.6.0-5.module_el8.5.0+2603+92118e57
- Affected before 2.6.0-5.module_el8.6.0+2881+2f24dc92
- softhsm-devel Fixed
A version is affected if any line below covers it.
- Affected before 2.6.0-5.module_el8.5.0+2603+92118e57
- Affected before 2.6.0-5.module_el8.6.0+2881+2f24dc92
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- slapi-nis Fixed in 0.56.5-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- slapi-nis Fixed in 0.56.5-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- slapi-nis No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- slapi-nis No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- slapi-nis No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- slapi-nis No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- slapi-nis No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- slapi-nis No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- slapi-nis No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.