SB2022123003 - Multiple vulnerabilities in IBM Cloud Transformation Advisor
Published: December 30, 2022 Updated: March 7, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 17 secuirty vulnerabilities.
1) Predictable from Observable State (CVE-ID: CVE-2022-30698)
The vulnerability allows a remote attacker to poison DNS cache.
The vulnerability exists due to the way Unbound handles delegation information expiration event. A remote attacker who controls a rouge DNS server can force the Unbound instance to cache incorrect information about subdomain delegation and permanently poison the DNS cache, e.g. perform the "ghost domain names" attack.
The attack is carried out when Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before expiry of the delegation information by querying Unbound for a second level subdomain which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation.2) Reliance on Reverse DNS Resolution for a Security-Critical Action (CVE-ID: CVE-2021-25220)
The vulnerability allows a remote attacker to poison DNS cache.
The vulnerability exists due to an error in DNS forwarder implementation. When using forwarders, bogus NS records supplied by, or via, those forwarders may be cached and used by named if it needs to recurse for any reason, causing it to obtain and pass on potentially incorrect answers. The cache could become poisoned with incorrect records leading to
queries being made to the wrong servers, which might also result in
false information being returned to clients.
3) NULL pointer dereference (CVE-ID: CVE-2018-16428)
The vulnerability allows a local attacker to cause DoS condition on the target system.
The vulnerability exists due to NULL pointer dereference in g_markup_parse_context_end_parse() in gmarkup.c. A local attacker can execute a specially crafted application or file that submits malicious input and cause the service to crash.
4) Use-after-free (CVE-ID: CVE-2022-40674)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the doContent() function in xmlparse.c. A remote attacker can pass specially crafted input to the application that is using the affected library, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
5) Heap-based buffer overflow (CVE-ID: CVE-2022-37434)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing a large gzip header within inflateGetHeader in inflate.c. A remote attacker can pass a specially crafted file to the affected application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
6) Use-after-free (CVE-ID: CVE-2022-3297)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the process_next_cpt_value() function in insexpand.c when processing files. A remote attacker can trick the victim to open a specially crafted flie, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
7) NULL pointer dereference (CVE-ID: CVE-2022-3278)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in eval.c. A remote attacker can perform a denial of service (DoS) attack.
8) Predictable from Observable State (CVE-ID: CVE-2022-30699)
The vulnerability allows a remote attacker to poison DNS cache.
The vulnerability exists due to the way Unbound handles delegation information expiration event. A remote attacker who controls a rouge DNS server can force the Unbound instance to cache incorrect information about domain delegation and permanently poison the DNS cache, e.g. perform the "ghost domain names" attack.
The attack is perform when Unbound is queried for a rogue domain name, which cached delegation information is about to expire. The rogue nameserver delays the response until the cached delegation information expires. Upon receiving the delayed answer containing the delegation information, Unbound overwrites the now expired entries.
9) Out-of-bounds read (CVE-ID: CVE-2022-27406)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the "FT_Request_Size" function. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
10) Input validation error (CVE-ID: CVE-2022-3171)
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 containing multiple instances of non-repeated embedded messages with repeated or unknown fields. A remote attacker can cause objects to be converted back-n-forth between mutable and immutable forms, resulting in potentially long garbage collection pauses.
11) Out-of-bounds read (CVE-ID: CVE-2022-27405)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the "FNT_Size_Request" function. A remote attacker can trigger out-of-bounds read error and cause a denial of service condition on the system.
12) Out-of-bounds write (CVE-ID: CVE-2022-27404)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the "sfnt_init_face" function. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
13) Double Free (CVE-ID: CVE-2022-2509)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within gnutls_pkcs7_verify() function when verifying the pkcs7 signatures. A remote attacker can pass specially crafted data to the application, trigger a double free error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
14) Out-of-bounds write (CVE-ID: CVE-2022-1304)
The vulnerability allows a local attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input. A local attacker can use a specially crafted filesystem, trigger out-of-bounds write and execute arbitrary code on the target system.
15) Out-of-bounds read (CVE-ID: CVE-2020-35527)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when handling ALTER TABLE for views that have a nested FROM clause. A remote attacker can pass specially crafted input to the application, trigger an out-of-bounds read error and read contents of memory on the system.
16) NULL pointer dereference (CVE-ID: CVE-2020-35525)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the INTERSEC query processing. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
17) Cross-site scripting (CVE-ID: CVE-2016-3709)
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. 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.
Remediation
Install update from vendor's website.