Not rated
CVE-2021-20254 A flaw was found in samba
Description
A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| samba | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- www.samba.org www.samba.org
- security.netapp.com security.netapp.com
- FEDORA-2021-1d0807008b lists.fedoraproject.org
- FEDORA-2021-7026246ea9 lists.fedoraproject.org
- GLSA-202105-22 security.gentoo.org
- [debian-lts-announce] 20210529 [SECURITY] [DLA 2668-1] samba security update lists.debian.org
Timeline
- Published
- Last modified
Other CVEs of samba
The 40 CVEs of samba →
CVE-2023-4154
A design flaw was found in Samba's DirSync control implementation, which exposes passwords and secrets in Active…
7.5
High
CVE-2023-0922
The Samba AD DC administration tool, when operating against a remote LDAP server, will by default send new or reset…
5.9
Medium
CVE-2023-0225
A flaw was found in Samba
4.3
Medium
CVE-2023-0614
The fix in 4.6.16, 4.7.9, 4.8.4 and 4.9.7 for CVE-2018-10919 Confidential attribute disclosure vi LDAP filters was…
7.7
High