CVE-2021-20277
- Source
- https://cve.org/CVERecord?id=CVE-2021-20277
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-20277.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-20277
- Downstream
- Related
- Published
- 2021-05-12T14:15:11.140Z
- Modified
- 2026-04-11T12:35:19.789661Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.
- Database specific
{ "unresolved_ranges": [ { "source": "CPE_FIELD", "cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "extracted_events": [ { "last_affected": "10.0" } ] }, { "source": "CPE_FIELD", "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "extracted_events": [ { "last_affected": "9.0" } ] }, { "source": "CPE_FIELD", "cpe": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "extracted_events": [ { "last_affected": "32" } ] }, { "source": "CPE_FIELD", "cpe": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "extracted_events": [ { "last_affected": "33" } ] }, { "source": "CPE_FIELD", "cpe": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "extracted_events": [ { "last_affected": "34" } ] } ] }- References
-
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/
- https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html
- https://security.gentoo.org/glsa/202105-22
- https://security.netapp.com/advisory/ntap-20210326-0007/
- https://www.debian.org/security/2021/dsa-4884
- https://www.samba.org/samba/security/CVE-2021-20277.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1941402
Affected packages
Git / github.com/samba-team/samba
Affected ranges
- Type
- GIT
- Repo
- https://github.com/samba-team/samba
- Events
- Database specific
{ "source": "CPE_FIELD", "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "extracted_events": [ { "introduced": "4.0.0" }, { "fixed": "4.12.13" }, { "introduced": "4.13.0" }, { "fixed": "4.13.6" }, { "introduced": "4.14.0" }, { "fixed": "4.14.1" } ] }