The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6404-1 advisory.

  - A compromised content process could have provided malicious data in a `PathRecording` resulting in an out-     of-bounds write, leading to a potentially exploitable crash in a privileged process. This vulnerability     affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5169)

  - In canvas rendering, a compromised content process could have caused a surface to change unexpectedly,     leading to a memory leak of a privileged process. This memory leak could be used to effect a sandbox     escape if the correct data was leaked. This vulnerability affects Firefox < 118. (CVE-2023-5170)

  - During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing     an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects     Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3. (CVE-2023-5171)

  - A hashtable in the Ion Engine could have been mutated while there was a live interior reference, leading     to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 118.
    (CVE-2023-5172)

  - In a non-standard configuration of Firefox, an integer overflow could have occurred based on network     traffic (possibly under influence of a local unprivileged webpage), leading to an out-of-bounds write to     privileged process memory. *This bug only affects Firefox if a non-standard preference allowing non-HTTPS     Alternate Services (`network.http.altsvc.oe`) is enabled.* This vulnerability affects Firefox < 118.
    (CVE-2023-5173)

  - During process shutdown, it was possible that an `ImageBitmap` was created that would later be used after     being freed from a different codepath, leading to a potentially exploitable crash. This vulnerability     affects Firefox < 118. (CVE-2023-5175)

  - Memory safety bugs present in Firefox 117, Firefox ESR 115.2, and Thunderbird 115.2. Some of these bugs     showed evidence of memory corruption and we presume that with enough effort some of these could have been     exploited to run arbitrary code. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and     Thunderbird < 115.3. (CVE-2023-5176)

  - Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1     allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium     security severity: High) (CVE-2023-5217)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Ubuntu 20.04 LTS : Firefox vulnerabilities (USN-6404-1)

critical Nessus Plugin ID 182431

Version 1.4

Version 1.3

Version 1.1

Version 1.0

Version 1.4 Nov 2, 2023, 4:31 AM IAVM reference Plugin Feed: 202311020431
Version 1.3 Oct 6, 2023, 10:25 AM IAVM reference Plugin Feed: 202310061025
Version 1.1 Oct 4, 2023, 4:16 PM CVSS metrics ("CVSSv2 score" changed from 6.8 to 10.0. "CVSSv2 vector" changed from "CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P" to "CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C") CVSSv2 severity (based on CVE-2023-5217, severity increased from "Medium" to "High") Plugin Feed: 202310041616
Version 1.0 Oct 3, 2023, 4:18 PM New Plugin Feed: 202310031618