SB2020102066 - Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.3

Description

This security bulletin contains information about 50 secuirty vulnerabilities.

1) Reachable Assertion (CVE-ID: CVE-2020-9283)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion during signature verification process. A remote attacker can supply a specially crafted certificate to the application (server or client) and perform a denial of service (DoS) attack.

2) Input validation error (CVE-ID: CVE-2017-12652)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in libpng when checking the chuck length against the user limit. A remote attacker can supply a specially crafted PNG image and crash the affected application.

3) Command injection (CVE-ID: CVE-2017-18190)

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The weakness exists in a localhost.localdomain whitelist entry in valid_host() in scheduler/client.c due to the localhost.localdomain name is often resolved via a DNS server. A remote attacker can send specially crafted POST requests to the CUPS daemon in conjunction with DNS rebinding, inject and execute arbitrary IPP commands.

4) XML External Entity injection (CVE-ID: CVE-2018-20843)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input including XML names that contain a large number of colons. A remote attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

5) Improper input validation (CVE-ID: CVE-2019-2974)

The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the Server: Optimizer component in MySQL Server. A remote authenticated user can exploit this vulnerability to perform a denial of service (DoS) attack.

6) Out-of-bounds write (CVE-ID: CVE-2019-5094)

The vulnerability allows a local user to escalate privileges on the vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the quota file functionality. A local user can send a specially crafted xt4 partition, trigger out-of-bounds write on the heap and execute arbitrary code on the target system.

Note: An attacker can corrupt a partition to trigger this vulnerability.

7) Out-of-bounds write (CVE-ID: CVE-2019-5188)

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in the directory rehashing functionality in "rehash.c" within the "mutate_name()" function. A local user can use a specially crafted ext4 directory, trigger out-of-bounds write on the stack and execute arbitrary code on the target system.

8) Heap-based buffer overflow (CVE-ID: CVE-2019-5482)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the tftp_receive_packet() function when processing TFTP data. A remote attacker can send specially crafted TFTP response to the vulnerable curl client, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

9) Stack-based buffer overflow (CVE-ID: CVE-2019-8675)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing SNMP requests within the asn1_get_type() function in cups/snmp.c. A remote attacker can send a specially crafted SNMP request to the CUPS service, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

10) Stack-based buffer overflow (CVE-ID: CVE-2019-8696)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing SNMP requests within the asn1_get_packed() function in cups/snmp.c. A remote attacker with access to the the SNMP service can send a specially crafted request to the application, trigger a stack-based buffer oveflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

11) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-11068)

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to an error within the xsltCheckRead() and xsltCheckWrite() functions when processing requests from remote servers. A remote attacker can trick the victim into opening a specially crafted URL that will result in "-1 error" code but the URL itself will be processed by the application later.

Successful exploitation of the vulnerability may allow an attacker to bypass certain security restrictions and perform XXE attacks.

12) Out-of-bounds read (CVE-ID: CVE-2019-11719)

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure. This vulnerability affects Firefox ESR < 60.8, Firefox < 68, and Thunderbird < 60.8.

13) Improper Certificate Validation (CVE-ID: CVE-2019-11727)

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists doe to an error within the Mozilla NSS library, when working with TLS certificates. A remote attacker can force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. A remote attacker can perform a Man-in-the-Middle attack and gain access to sensitive information.

14) Use-after-free (CVE-ID: CVE-2019-11756)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing SFTKSession object. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a use-after-free error and crash the application or execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

15) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-12450)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the application applies default directory permissions to files while copying them in file_copy_fallback() function in gio/gfile.c. A local user can interfere with the copying operation and gain access to otherwise restricted files, as the application applies correct access permissions after the file was copied only.

Such application behavior allows a local user to access potentially sensitive data or modify file contents in case directory permissions that were applied to the file allow such operations.

16) Improper Authentication (CVE-ID: CVE-2019-12749)

The vulnerability allows a an attacker to bypass authentication process.

The vulnerability exists due to an error when handling symlinks within the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. A malicious client with access to to its own home directory can manipulate a ~/.dbus-keyrings symlink to cause a DBusServer with a different uid to read and write into unintended locations.

Successful exploitation of the vulnerability may allow an attacker to bypass DBUS_COOKIE_SHA1 authentication mechanis.

17) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-14822)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to iBus does not check user privileges when allowing connection to the AF_UNIX socket. A local user can connect to an existing AF_UNIX socket and perform arbitrary actions, such read and send messages on behalf of another user connected on a graphical environment. 

18) Input validation error (CVE-ID: CVE-2019-14866)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to GNU cpio does not properly validate files when writing tar headers during tar archive creation. A local user can trick the victim into creating a tar archive out of a directory with specially crafted files. As a result the generated archive may contain files that the attacker does not have access to.

19) Integer overflow (CVE-ID: CVE-2019-14973)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attacks.

The vulnerability exists due to integer overflow in the "_TIFFCheckMalloc" and "_TIFFCheckRealloc" functions in the "tif_aux.c" file. A remote attacker can trick a victim to open a specially crafted file that contains crafted TIFF images, trigger integer overflow and crash the target application.

20) Out-of-bounds read (CVE-ID: CVE-2019-15903)

The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform denial of service (DoS) attack.

The vulnerability exists due to a boundary error when processing XML documents within the expat library. A remote attacker can create a specially crafted XML file, pass it to the affected application, trigger out-of-bounds read error and read contents of memory on the system or crash the affected application.

21) Cross-site scripting (CVE-ID: CVE-2019-16935)

The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data when processing the server_title field in the XML-RPC server (Lib/DocXMLRPCServer.py) in Python 2.x, and in Lib/xmlrpc/server.py in Python 3.x. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

22) Heap-based buffer overflow (CVE-ID: CVE-2019-17006)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Mozilla NSS library when processing input text length while using certain cryptographic primitives. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

23) Algorithm Downgrade (CVE-ID: CVE-2019-17023)

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to insecure negotiation After a HelloRetryRequest in Mozilla NSS that can lead to selection of a less secure protocol (e.g. TLS 1.2 or below) after the HelloRetryRequest TLS 1.3 is sent.

24) Integer overflow (CVE-ID: CVE-2019-17498)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack or access sensitive information.

The vulnerability exists due to integer overflow in the "SSH_MSG_DISCONNECT" logic in "packet.c" in a bounds check. A remote attacker can specify an arbitrary (out-of-bounds) offset for a subsequent memory read, trigger out-of-bounds read, disclose sensitive information or cause a denial of service condition on the target system when a user connects to the malicious SSH server.

25) Integer overflow (CVE-ID: CVE-2019-17546)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when processing RGBA images. A remote attacker can create a specially crafted RGBA image, pass it to the affected application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

26) Buffer overflow (CVE-ID: CVE-2019-18197)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the xsltCopyText() function in transform.c in libxslt. A remote attacker can create a specially crafted XML document, pass it to the affected application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

27) Information disclosure (CVE-ID: CVE-2019-19126)

The vulnerability allows a local authenticated user to gain access to sensitive information.

On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program.

28) Memory leak (CVE-ID: CVE-2019-19956)

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in xmlParseBalancedChunkMemoryRecover in parser.c. A remote attacker can trigger a memory leak related to newDoc->oldNs and perform denial of service attack.

29) Memory leak (CVE-ID: CVE-2019-20386)

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak in button_open() function in login/logind-button.c in systemd. A remote attacker can execute the udevadm trigger command and perform denial of service attack.

30) Memory leak (CVE-ID: CVE-2019-20388)

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in xmlSchemaPreRun in xmlschemas.c. A remote attacker can trigger a xmlSchemaValidateStream memory leak and perform denial of service attack.

31) Insufficiently protected credentials (CVE-ID: CVE-2020-2181)

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to the affected plugin does not mask (i.e., replace with asterisks) secrets in the build log when the build contains no build steps. A remote authenticated attacker can gain unauthorized access to sensitive information on the target system.

32) Insufficiently protected credentials (CVE-ID: CVE-2020-2182)

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to the affected plugin does not mask (i.e., replace with asterisks) secrets containing a `$` character in some circumstances. A remote authenticated attacker can gain unauthorized access to sensitive information on the target system.

33) Stored cross-site scripting (CVE-ID: CVE-2020-2224)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to the affected plugin does not escape node names shown in tooltips on the overview page of builds with a single axis. A remote authenticated attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

34) Stored cross-site scripting (CVE-ID: CVE-2020-2225)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to the affected plugin does not escape the axis names shown in tooltips on the overview page of builds with multiple axes. A remote authenticated attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

35) Stored cross-site scripting (CVE-ID: CVE-2020-2226)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within the user names shown in the permission table. A remote authenticated attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

36) Improper input validation (CVE-ID: CVE-2020-2574)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the C API component in MySQL Client. A remote non-authenticated attacker can exploit this vulnerability to perform a denial of service (DoS) attack.

37) Improper input validation (CVE-ID: CVE-2020-2752)

The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the C API component in MySQL Client. A remote authenticated user can exploit this vulnerability to perform a denial of service (DoS) attack.

38) Improper input validation (CVE-ID: CVE-2020-2780)

The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the Server: DML component in MySQL Server. A remote authenticated user can exploit this vulnerability to perform a denial of service (DoS) attack.

39) Improper input validation (CVE-ID: CVE-2020-2812)

The vulnerability allows a remote privileged user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the Server: Stored Procedure component in MySQL Server. A remote privileged user can exploit this vulnerability to perform a denial of service (DoS) attack.

40) Cryptographic issues (CVE-ID: CVE-2020-6829)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to usage of wNAF point multiplication algorithm when performing EC scalar point multiplication, which leaked partial information about the nonce used during signature generation. A remote attacker can perform an electro-magnetic side-channel attack and recover the private key.

41) Infinite loop (CVE-ID: CVE-2020-7595)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop in xmlStringLenDecodeEntities in parser.c. A remote attacker can consume all available system resources and cause denial of service conditions in a certain end-of-file situation.

42) Resource management error (CVE-ID: CVE-2020-8492)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation in urllib.request.AbstractBasicAuthHandler when processing HTTP responses. A remote attacker who controls a HTTP server can send a specially crafted HTTP response to the client application and conduct Regular Expression Denial of Service (ReDoS) attack.

43) Resource management error (CVE-ID: CVE-2020-12243)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error when performing searches with nested boolean expressions in filter.c within the slapd daemon in OpenLDAP. A remote attacker can send a specially crafted LDAP request to the affected server and crash the LDAP service.

44) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2020-12400)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists in Mozilla NSS library in the way P-384 and P-521 curves are used in the generation of EDSA signatures, leaking partial information about the ECDSA nonce. Given a small number of ECDSA signatures, this information can be used to steal the private key.

45) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2020-12401)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to usage of ECDSA signatures. A local user can perform a side channel attack and gain access to sensitive information.

46) Cryptographic issues (CVE-ID: CVE-2020-12402)

The vulnerability allows a remote attacker to recover the secret primes.

During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes.

47) Out-of-bounds read (CVE-ID: CVE-2020-12403)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing data encrypted with CHACHA20-POLY1305 ciphersuite. A remote attacker can trick the victim to connect to a malicious server and gain access to sensitive information.

48) Resource exhaustion (CVE-ID: CVE-2020-12825)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources caused by excessive recursion in cr_parser_parse_any_core in cr-parser.c. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

49) Path traversal (CVE-ID: CVE-2020-14352)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in remote repository metadata. A remote attacker with control over the repository can trick the victim into downloading software and copy files outside of the destination directory on the targeted system. Successful exploitation of the vulnerability may result in system compromise.

50) Deserialization of Untrusted Data (CVE-ID: CVE-2020-24750)

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

FasterXML jackson-databind 2.x before 2.9.10.6 mishandles the interaction between serialization gadgets and typing, related to com.pastdev.httpcomponents.configuration.JndiConfiguration. A remote attacker can execute arbitrary code on the target system.

Remediation

Install update from vendor's website.

References

• https://access.redhat.com/errata/RHSA-2020:4264