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ubuntuUbuntuUSN-4930-1
HistoryApr 29, 2021 - 12:00 a.m.

Samba vulnerability

2021-04-2900:00:00
ubuntu.com
92

7.1 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON

Releases

  • Ubuntu 21.04
  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • samba - SMB/CIFS file, print, and login server for Unix

Details

Peter Eriksson discovered that Samba incorrectly handled certain negative
idmap cache entries. This issue could result in certain users gaining
unauthorized access to files, contrary to expected behaviour.

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchsamba< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchctdb< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchctdb-dbgsym< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchlibnss-winbind< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchlibnss-winbind-dbgsym< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchlibpam-winbind< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchlibpam-winbind-dbgsym< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchlibsmbclient< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchlibsmbclient-dbgsym< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
Ubuntu21.04noarchlibsmbclient-dev< 2:4.13.3+dfsg-1ubuntu2.1UNKNOWN
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1-10 of 1761

Related

osv 6
nessus 49
ubuntucve 1
cisa 1
openvas 34
rocky 1
redhat 6
ibm 4
fedora 3
oraclelinux 2
cbl_mariner 1
almalinux 1
cvelist 1
freebsd 1
prion 1
altlinux 2
centos 1
veracode 1
debiancve 1
alpinelinux 1
amazon 2
redhatcve 1
samba 1
cve 1
suse 2
mageia 1
gentoo 1
ubuntu 1
debian 1
rosalinux 1
osv
osv
samba vulnerability
2021-04-29 16:48:57
Moderate: samba security update
2021-11-02 07:48:59
CVE-2021-20254
2021-05-05 14:15:07
nessus
nessus
EulerOS 2.0 SP9 : samba (EulerOS-SA-2021-2282)
2021-08-09 00:00:00
Rocky Linux 8 : samba (RLSA-2021:4058)
2022-02-09 00:00:00
SUSE SLES11 Security Update : samba (SUSE-SU-2021:14709-1)
2021-06-10 00:00:00
ubuntucve
ubuntucve
CVE-2021-20254
2021-04-29 00:00:00
cisa
cisa
Samba Releases Security Updates
2021-04-30 00:00:00
openvas
openvas
CentOS: Security Advisory for ctdb (CESA-2021:2313)
2021-06-15 00:00:00
Fedora: Security Advisory for samba (FEDORA-2021-7de0418ec8)
2021-05-01 00:00:00
Fedora: Security Advisory for samba (FEDORA-2021-7026246ea9)
2021-05-08 00:00:00
rocky
rocky
samba security update
2021-11-02 07:48:59
redhat
redhat
(RHSA-2021:2313) Moderate: samba security and bug fix update
2021-06-08 17:58:49
(RHSA-2021:3988) Moderate: samba security update
2021-10-26 07:01:25
(RHSA-2021:4866) Moderate: samba security update
2021-11-30 15:15:12
ibm
ibm
Security Bulletin: A vulnerability in Samba affects IBM Spectrum Scale SMB protocol access method (CVE-2021-20254)
2021-12-06 14:13:55
Security Bulletin: Samba for IBM i is affected by CVE-2021-20254
2021-05-13 14:26:31
Security Bulletin: Multiple Samba vulnerability issues in IBM Storwize V7000 Unified
2021-10-14 16:55:46
fedora
fedora
[SECURITY] Fedora 33 Update: samba-4.13.8-0.fc33
2021-05-07 00:48:11
[SECURITY] Fedora 32 Update: samba-4.12.15-0.fc32
2021-05-08 01:10:40
[SECURITY] Fedora 34 Update: samba-4.14.4-0.fc34
2021-04-30 00:56:42
oraclelinux
oraclelinux
samba security and bug fix update
2021-06-09 00:00:00
samba security update
2021-11-02 00:00:00
cbl_mariner
cbl_mariner
CVE-2021-20254 affecting package samba 4.12.5-6
2024-05-17 09:07:16
almalinux
almalinux
Moderate: samba security update
2021-11-02 07:48:59
cvelist
cvelist
CVE-2021-20254
2021-05-05 13:36:32
freebsd
freebsd
samba -- negative idmap cache entries vulnerability
2021-04-29 00:00:00
prion
prion
Design/Logic Flaw
2021-05-05 14:15:00
altlinux
altlinux
Security fix for the ALT Linux 10 package samba version 4.14.4-alt1
2021-04-30 00:00:00
Security fix for the ALT Linux 10 package samba version 4.14.4-alt2
2021-05-06 00:00:00
centos
centos
ctdb, libsmbclient, libwbclient, samba security update
2021-06-14 18:37:00
veracode
veracode
Information Disclosure
2021-05-06 11:27:33
debiancve
debiancve
CVE-2021-20254
2021-05-05 14:15:00
alpinelinux
alpinelinux
CVE-2021-20254
2021-05-05 14:15:00
amazon
amazon
Medium: samba
2021-07-01 01:06:00
Critical: samba
2022-02-10 21:59:00
redhatcve
redhatcve
CVE-2021-20254
2021-04-29 10:18:51
samba
samba
Negative idmap cache entries can cause incorrect
2021-04-29 00:00:00
cve
cve
CVE-2021-20254
2021-05-05 14:15:00
suse
suse
Security update for samba (important)
2021-09-22 00:00:00
Security update for samba (important)
2021-05-01 00:00:00
mageia
mageia
Updated samba and ldb packages fix security vulnerabilities
2021-06-25 17:43:41
gentoo
gentoo
Samba: Multiple vulnerabilities
2021-05-26 00:00:00
ubuntu
ubuntu
Samba vulnerabilities
2021-05-03 00:00:00
debian
debian
[SECURITY] [DLA 2668-1] samba security update
2021-05-29 11:11:49
rosalinux
rosalinux
Advisory ROSA-SA-2021-1967
2021-07-02 18:07:38

7.1 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.2%

JSON
Related for USN-4930-1
osv6nessus49ubuntucve1cisa1openvas34rocky1redhat6ibm4fedora3oraclelinux2cbl_mariner1almalinux1cvelist1freebsd1prion1altlinux2centos1veracode1debiancve1alpinelinux1amazon2redhatcve1samba1cve1suse2mageia1gentoo1ubuntu1debian1rosalinux1