SB2021122229 - SUSE update for MozillaThunderbird
Published: December 22, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 33 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2021-29981)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input when lowering/register allocation during live range splitting. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger register confusion failures in JITted code and execute arbitrary code on the system.
2) Type Confusion (CVE-ID: CVE-2021-29982)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to incorrect JIT optimization and a type confusion error. A remote attacker can trick the victim to open a specially crafted web page and read a single bit of memory.
3) Insufficient UI Warning of Dangerous Operations (CVE-ID: CVE-2021-29987)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to the way Firefox displays permission panels. After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to.
Note, the vulnerability affects Linux installations only.
4) HTTP response splitting (CVE-ID: CVE-2021-29991)
The vulnerability allows a remote attacker to perform HTTP splitting attacks.
The vulnerability exists due to the affected software incorrectly accepts a newline in a HTTP/3 header, interpretting it as two separate headers. A remote attacker can perform a header splitting attack against servers using HTTP/3.
5) Race condition (CVE-ID: CVE-2021-32810)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a race condition in the "Stealer::steal", "Stealer::steal_batch" and "Stealer::steal_batch_and_pop" functions. A remote attacker can exploit the race and gain unauthorized access to sensitive information and execute arbitrary code on the system.
6) Input validation error (CVE-ID: CVE-2021-38492)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input when delegating navigations to the operating system. Firefox accept the mk scheme, which allows a remote attacker to launch pages and execute scripts in Internet Explorer in unprivileged mode.
7) Buffer overflow (CVE-ID: CVE-2021-38493)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
8) Buffer overflow (CVE-ID: CVE-2021-38495)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
9) Use-after-free (CVE-ID: CVE-2021-38496)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error during operations on MessageTasks. A remote attacker can trick the victim to visit a specially crafted web page, 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.
10) Origin validation error (CVE-ID: CVE-2021-38497)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to an error, which can cause a plain-text validation message to overlaid on another origin through the use of reportValidity() and window.open(). A remote attacker can perform a spoofing attack.
11) Use-after-free (CVE-ID: CVE-2021-38498)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the nsLanguageAtomService object. A remote attacker can trick the victim to open a specially crafted website, 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.
12) Memory corruption (CVE-ID: CVE-2021-38500)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can trick the victim to visit a specially crafted web page, trigger a memory corruption and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
13) Buffer overflow (CVE-ID: CVE-2021-38501)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted website, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
14) Cleartext transmission of sensitive information (CVE-ID: CVE-2021-38502)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to software ignores the configuration to require STARTTLS security for an SMTP connection. A remote attacker with ability to intercept network traffic can gain access to sensitive data.
15) Security features bypass (CVE-ID: CVE-2021-38503)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to the iframe sandbox rules were not correctly applied to XSLT stylesheets. A remote attacker can load use an iframe to bypass restrictions such as executing scripts or navigating the top-level frame.
16) Use-after-free (CVE-ID: CVE-2021-38504)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when interacting with an HTML input element's file picker dialog with webkitdirectory set. A remote attacker can trick the victim to open a specially crafted website, 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.
17) Information disclosure (CVE-ID: CVE-2021-38505)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to absence of support for a new feature in Windows 10 known as Cloud Clipboard that, if enabled, will record data copied to the clipboard to the
cloud, and make it available on other computers in certain scenarios. Applications that wish to prevent copied data from being recorded in Cloud History must use specific clipboard formats, which were not implemented in previous versions of Firefox and Firefox ESR.
18) Insufficient UI Warning of Dangerous Operations (CVE-ID: CVE-2021-38506)
The vulnerability allows a remote attacker to perform spoofing attacks.
The vulnerability exists due to Firefox could have entered fullscreen mode without notification or warning to the user. A remote attacker can perform spoofing attacks on the browser UI.
19) Security features bypass (CVE-ID: CVE-2021-38507)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists in the Opportunistic Encryption feature of HTTP2, which allows a connection to be transparently upgraded to TLS while retaining
the visual properties of an HTTP connection, including being
same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP address (e.g. port
8443) did not opt-in to opportunistic encryption; a network attacker
could forward a connection from the browser from port 443 to port 8443,
causing the browser to treat the content of port 8443 as same-origin
with HTTP. As a result, a remote attacker can bypass Same-Origin-Policy on services hosted on other ports.
20) Improper Restriction of Rendered UI Layers or Frames (CVE-ID: CVE-2021-38508)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to Firefox displays the form validity message in the correct location at the same time as a permission prompt (such as for geolocation). The validity message could have obscured the prompt, resulting in the user potentially being tricked into granting the permission.
21) Improper Restriction of Rendered UI Layers or Frames (CVE-ID: CVE-2021-38509)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of an unusual sequence of attacker-controlled events. A remote attacker can display a Javascript alert() dialog with arbitrary (although unstyled) contents over top of arbitrary webpage of the attacker's choosing.
22) Insufficient UI Warning of Dangerous Operations (CVE-ID: CVE-2021-38510)
The vulnerability allows a remote attacker to silently download dangerous files on the system.
The vulnerability exists due to the executable file warning is not presented to the user when downloading .inetloc files. A remote attacker can silently download a potentially dangerous file to the user's system.
The vulnerability affects macOS operating system only.
23) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2021-40529)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to incorrect ElGamal implementation in Botan, which allows plaintext recovery. A remote attacker can perform a cross-configuration attack against OpenPGP and recover encrypted data.
24) Security features bypass (CVE-ID: CVE-2021-43528)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities.
25) Information disclosure (CVE-ID: CVE-2021-43536)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to URL leakage when executing asynchronous functions. A remote attacker can trick the victim to open a specially crafted web page and reveal the URL of the page that is being visited afterwards.
26) Type conversion (CVE-ID: CVE-2021-43537)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a type conversion error when processing sizes from 64bit to 32bit integers when using structured clone. A remote attacker can trick the victim to visit a specially crafted web page, trigger a heap-based buffer overflow and execute arbitrary code on the system.
27) Spoofing attack (CVE-ID: CVE-2021-43538)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to a race in notification code. A remote attacker can hide the notification for pages that had received full screen and pointer lock access. Successful exploitation of the vulnerability may allow an attacker to perform spoofing attack.
28) Use-after-free (CVE-ID: CVE-2021-43539)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in GC rooting when calling wasm instance methods. A remote attacker can trick the victim to open a specially crafted web page, 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.
29) Input validation error (CVE-ID: CVE-2021-43541)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input when handling spaces in URLS with external protocol handlers. A remote attacker can trick the victim to click on a specially crafted link and pass unescaped input to a third-party application via URI handler.
30) Information disclosure (CVE-ID: CVE-2021-43542)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the way Firefox handles XMLHttpRequest requests. A remote attacker can initiate a XMLHttpRequest and identify installed applications by probing error messages for loading external protocols.
31) Security features bypass (CVE-ID: CVE-2021-43543)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to an error when handling CSP policies. Documents loaded with the CSP sandbox directive can escape the sandbox's script restriction by embedding additional content.
32) Infinite loop (CVE-ID: CVE-2021-43545)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when using Location API. A remote attacker can consume all available system resources and cause denial of service conditions.
33) Spoofing attack (CVE-ID: CVE-2021-43546)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data, when native cursor is zoomed. A remote attacker can perform cursor spoofing attack.
Remediation
Install update from vendor's website.