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<base href="https://bugzilla.rosalinux.ru/">
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Platform</th>
<td>2021.1
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_CONFIRMED "
title="CONFIRMED - [CVE 21] samba 4.15.5 CVEs found"
href="https://bugzilla.rosalinux.ru/show_bug.cgi?id=13485">13485</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[CVE 21] samba 4.15.5 CVEs found
</td>
</tr>
<tr>
<th>Classification</th>
<td>ROSA-based products
</td>
</tr>
<tr>
<th>Product</th>
<td>ROSA Fresh
</td>
</tr>
<tr>
<th>Version</th>
<td>All
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>URL</th>
<td>CVE-2021-20251, CVE-2021-20254, CVE-2021-20277, CVE-2021-23192, CVE-2022-44640, CVE-2023-0614, CVE-2023-34966, CVE-2023-34967, CVE-2023-34968,
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>CONFIRMED
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>Normal
</td>
</tr>
<tr>
<th>Component</th>
<td>System (kernel, glibc, systemd, bash, PAM...)
</td>
</tr>
<tr>
<th>Assignee</th>
<td>bugs@lists.rosalinux.ru
</td>
</tr>
<tr>
<th>Reporter</th>
<td>y.tumanov@rosalinux.ru
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>bugs@lists.rosalinux.ru
</td>
</tr>
<tr>
<th>CC</th>
<td>e.kosachev@rosalinux.ru, m.novosyolov@rosalinux.ru, s.matveev@rosalinux.ru, y.tumanov@rosalinux.ru
</td>
</tr>
<tr>
<th>Target Milestone</th>
<td>---
</td>
</tr>
<tr>
<th>Flags</th>
<td>secteam_verified?
</td>
</tr></table>
<p>
<div>
<pre>Please patch CVEs for package samba version 4.15.5
INFO (CVEs are): samba 4.15.5
cves found
CVE-2021-20251
Desc: A flaw was found in samba. A race condition in the password lockout code
may lead to the risk of brute force attacks being successful if special
conditions are met.
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2021-20251">https://nvd.nist.gov/vuln/detail/CVE-2021-20251</a>
Severity: MEDIUM
CVE-2021-20254
Desc: 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.
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2021-20254">https://nvd.nist.gov/vuln/detail/CVE-2021-20254</a>
Severity: MEDIUM
CVE-2021-20277
Desc: 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.
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2021-20277">https://nvd.nist.gov/vuln/detail/CVE-2021-20277</a>
Severity: HIGH
CVE-2021-23192
Desc: A flaw was found in the way samba implemented DCE/RPC. If a client to a
Samba server sent a very large DCE/RPC request, and chose to fragment it, an
attacker could replace later fragments with their own data, bypassing the
signature requirements.
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2021-23192">https://nvd.nist.gov/vuln/detail/CVE-2021-23192</a>
Severity: HIGH
CVE-2022-44640
Desc: Heimdal before 7.7.1 allows remote attackers to execute arbitrary code
because of an invalid free in the ASN.1 codec used by the Key Distribution
Center (KDC).
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2022-44640">https://nvd.nist.gov/vuln/detail/CVE-2022-44640</a>
Severity: CRITICAL
CVE-2023-0614
Desc: 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 insufficient and an attacker may be
able to obtain confidential BitLocker recovery keys from a Samba AD DC.
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2023-0614">https://nvd.nist.gov/vuln/detail/CVE-2023-0614</a>
Severity: MEDIUM
CVE-2023-34966
Desc: An infinite loop vulnerability was found in Samba's mdssvc RPC service
for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client,
the core unmarshalling function sl_unpack_loop() did not validate a field in
the network packet that contains the count of elements in an array-like
structure. By passing 0 as the count value, the attacked function will run in
an endless loop consuming 100% CPU. This flaw allows an attacker to issue a
malformed RPC request, triggering an infinite loop, resulting in a denial of
service condition.
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2023-34966">https://nvd.nist.gov/vuln/detail/CVE-2023-34966</a>
Severity: HIGH
CVE-2023-34967
Desc: A Type Confusion vulnerability was found in Samba's mdssvc RPC service
for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data
structure is a key-value style dictionary where the keys are character strings,
and the values can be any of the supported types in the mdssvc protocol. Due to
a lack of type checking in callers of the dalloc_value_for_key() function,
which returns the object associated with a key, a caller may trigger a crash in
talloc_get_size() when talloc detects that the passed-in pointer is not a valid
talloc pointer. With an RPC worker process shared among multiple client
connections, a malicious client or attacker can trigger a process crash in a
shared RPC mdssvc worker process, affecting all other clients this worker
serves.
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2023-34967">https://nvd.nist.gov/vuln/detail/CVE-2023-34967</a>
Severity: MEDIUM
CVE-2023-34968
Desc: A path disclosure vulnerability was found in Samba. As part of the
Spotlight protocol, Samba discloses the server-side absolute path of shares,
files, and directories in the results for search queries. This flaw allows a
malicious client or an attacker with a targeted RPC request to view the
information that is part of the disclosed path.
Link: <a href="https://nvd.nist.gov/vuln/detail/CVE-2023-34968">https://nvd.nist.gov/vuln/detail/CVE-2023-34968</a>
Severity: MEDIUM</pre>
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