CVE-2021-20254

Samba CVE-2021-20254 concerns the SMB/CIFS file server’s SID-to-GID mapping in the idmap cache. A flaw allows reading past the end of the array when a negative cache entry exists, potentially leaking group membership data into the process token and impacting data confidentiality and integrity. Af...

Negative idmap cache entries can cause incorrect

Description 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 caus...

openSUSE Security Update : samba (openSUSE-2020-1819)

This update for samba fixes the following issues : Update to samba 4.11.14 - CVE-2020-14383: An authenticated user can crash the DCE/RPC DNS with easily crafted records bsc1177613. - CVE-2020-14323: Unprivileged user can crash winbind bsc1173994. - CVE-2020-14318: Missing permissions check in...

Security update for samba (important)

openSUSE Security Update: Security update for samba Announcement ID: openSUSE-SU-2020:1819-1 Rating: important References: 1173902 1173994 1177613 Cross-References: CVE-2020-14318 CVE-2020-14323 CVE-2020-14383 Affected Products: openSUSE Leap 15.2 An update that fixes three vulnerabilities is now...

openSUSE Security Update : samba (openSUSE-2020-1526)

"This update for samba fixes the following issues : - ZeroLogon: An elevation of privilege was possible with some non default configurations when an attacker established a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol MS-NRPC CVE-2020-147...

openSUSE Security Update : ldb / samba (openSUSE-2020-1313)

"This update for ldb, samba fixes the following issues : Changes in samba : - Update to samba 4.11.11 + CVE-2020-10730: NULL de-reference in AD DC LDAP server when ASQ and VLV combined; bso14364 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted...

openSUSE Security Update : ldb / samba (openSUSE-2020-1023)

"This update for ldb, samba fixes the following issues : Changes in samba : - Update to samba 4.11.11 + CVE-2020-10730: NULL de-reference in AD DC LDAP server when ASQ and VLV combined; bso14364 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted...

Security update for samba (important)

openSUSE Security Update: Security update for samba Announcement ID: openSUSE-SU-2020:0601-1 Rating: important References: 1167070 1169473 1169851 Cross-References: CVE-2020-10704 Affected Products: openSUSE Leap 15.1 An update that solves one vulnerability and has two fixes is now available...

SUSE SLED15 / SLES15 Security Update : samba (SUSE-SU-2020:1133-1)

This update for samba fixes the following issues : Security issue fixed : CVE-2020-10704: Fixed a stack overflow in the AD DC CLDAP server bsc1169851. Non-security issues fixed : Fixed spnego fallback from kerberos to ntlmssp in smbd server bsc1169473. Fixed warning messages for non root users...

Denial Of Service (DoS)

samba is vulnerable to denial of service. A flaw was found in the way Samba handled file descriptors. If an attacker were able to open a large number of file descriptors on the Samba server, they could flip certain stack bits to "1" values, resulting in the Samba server smbd crashing...

Denial Of Service (DoS)

Samba vulnerable to Denial Of Service DoS. Due to an input sanitization flaw in the way Samba parsed client data, a malicious client could send a specially-crafted SMB packet to the Samba server, resulting in arbitrary code execution with the privileges of the Samba server smbd...

Unauthorized Access Control Modification

Samba is vulnerable Unauthorized Access Control Modification. An uninitialized data access flaw was discovered in the smbd daemon when using the non-default "dos filemode" configuration option in "smb.conf". An authenticated, remote user with write access to a file could possibly use this flaw to...

EulerOS 2.0 SP8 : samba (EulerOS-SA-2020-1179)

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - There is an issue in all samba 4.11.x versions before 4.11.5, all samba 4.10.x versions before 4.10.12 and all samba 4.9.x versions before 4.9.18...

Security update for tcpdump (important)

openSUSE Security Update: Security update for tcpdump Announcement ID: openSUSE-SU-2019:2344-1 Rating: important References: 1068716 1153098 1153332 Cross-References: CVE-2017-16808 CVE-2018-10103 CVE-2018-10105 CVE-2018-14461 CVE-2018-14462 CVE-2018-14463 CVE-2018-14464 CVE-2018-14465...

The vulnerability of Samba software on the Astra Linux operating system, which allows a hacker to trigger a service failure.

The vulnerability of Samba software on the Astra Linux operating system is related to the absence of the necessary privilege PARSECCAPSIG for the smbd process. Exploiting this vulnerability can allow a malicious actor to cause service interruptions. source-iocs-preserved const=PARSECCAPSIG...

Denial Of Service (DoS)

samba is vulnerable denial of service DoS attacks. The vulnerability exists as smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability fdopenatomic infinite loop with high CPU usage and memory consumption due to wrongly handling dangling symlinks...

Authorization Bypass

samba is vulnerable to authorization bypass attacks. The vulnerabiltiy exists as the 1 CreateAccount, 2 OpenAccount, 3 AddAccountRights, and 4 RemoveAccountRights LSA RPC procedures in smbd in Samba 3.4.x before 3.4.17, 3.5.x before 3.5.15, and 3.6.x before 3.6.5 do not properly restrict...

Telus Actiontec T2200H Command Injection Vulnerability

The Telus Actiontec T2200H is a modem device from Telus USA. A command injection vulnerability exists in the fileshare.cmd file in the Telus Actiontec T2200H using firmware version T2200H-31.128L.03. An attacker can exploit this vulnerability to inject operating system commands with the help of...

Security Bulletin: A vulnerability in Samba affects IBM Spectrum Scale SMB protocol access method (CVE-2017-9461)

Summary A Samba vulnerability affects IBM Spectrum Scale SMB protocol access method which could allow denial of service, caused by improper handling of dangling symlinks in smbd. A remote attacker could exploit this vulnerability to cause a fdopenatomic infinite loop with high CPU usage and memor...

openSUSE Security Update : samba (openSUSE-2018-649)

"Samba was updated to 4.6.14, fixing bugs and security issues : Version update to 4.6.14 bsc1093664 : + vfsceph: add fake async pwrite/pread send/recv hooks; bso13425. + Fix memory leak in vfsceph; bso13424. + winbind: avoid using fstrcpydcname,... in dualinitconnection; bso13294. + s3:smb2server...