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CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0

20 Feb 2023 — Members of the <code>DEVMODEW</code> struct set by the printer device driver weren't being validated and could have resulted in invalid values which in turn would cause the browser to attempt out of bounds access to related variables.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. An update that fixes 14 vulnerabilities is now available. • https://bugzilla.mozilla.org/show_bug.cgi?id=1811852 • CWE-125: Out-of-bounds Read •

CVSS: 9.4EPSS: 0%CPEs: 4EXPL: 1

20 Feb 2023 — After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. • https://bugzilla.mozilla.org/show_bug.cgi?id=1784451 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVSS: 10.0EPSS: 0%CPEs: 2EXPL: 0

16 Feb 2023 — Memory safety bugs present in Firefox ESR 102.7. 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 Thunderbird < 102.8 and Firefox ESR < 102.8. The Mozilla Foundation Security Advisory describes this flaw as: Mozilla developers Philipp and Gabriele Svelto reported memory safety bugs present in Firefox ESR 102.7. Some of these bugs showed evidence of memory corruption and we ... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1544127%2C1762368 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

16 Feb 2023 — The Content-Security-Policy-Report-Only header could allow an attacker to leak a child iframe's unredacted URI when interaction with that iframe triggers a redirect. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. The Mozilla Foundation Security Advisory describes this flaw as: The `Content-Security-Policy-Report-Only` header could allow an attacker to leak a child iframe's unredacted URI when interaction with that iframe triggers a redirect. USN-5880-1 f... • https://bugzilla.mozilla.org/show_bug.cgi?id=1790345 • CWE-203: Observable Discrepancy CWE-1021: Improper Restriction of Rendered UI Layers or Frames •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

16 Feb 2023 — Permission prompts for opening external schemes were only shown for ContentPrincipals resulting in extensions being able to open them without user interaction via ExpandedPrincipals. This could lead to further malicious actions such as downloading files or interacting with software already installed on the system. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. The Mozilla Foundation Security Advisory describes this flaw as: Permission prompt... • https://bugzilla.mozilla.org/show_bug.cgi?id=1792138 • CWE-84: Improper Neutralization of Encoded URI Schemes in a Web Page CWE-863: Incorrect Authorization •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

16 Feb 2023 — An invalid downcast from <code>nsTextNode</code> to <code>SVGElement</code> could have lead to undefined behavior. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. The Mozilla Foundation Security Advisory describes this flaw as: An invalid downcast from `nsTextNode` to `SVGElement` could have lead to undefined behavior. An update that fixes 14 vulnerabilities is now available. This update for MozillaFirefox fixes the following issues. • https://bugzilla.mozilla.org/show_bug.cgi?id=1811464 • CWE-704: Incorrect Type Conversion or Cast •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

16 Feb 2023 — Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in ScriptLoadContext. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. The Mozilla Foundation Security Advisory describes this flaw as: Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in `ScriptLoadContext`. USN-5880-1 fixed vulnerabilities in Firefox. The update ... • https://bugzilla.mozilla.org/show_bug.cgi?id=1811939 • CWE-416: Use After Free •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

16 Feb 2023 — Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free after unwrapping the proxy. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. The Mozilla Foundation Security Advisory describes this flaw as: Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-af... • https://bugzilla.mozilla.org/show_bug.cgi?id=1810711 • CWE-416: Use After Free •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

16 Feb 2023 — When importing a SPKI RSA public key as ECDSA P-256, the key would be handled incorrectly causing the tab to crash. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. The Mozilla Foundation Security Advisory describes this flaw as: When importing a SPKI RSA public key as ECDSA P-256, the key would be handled incorrectly causing the tab to crash. USN-5880-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. • https://bugzilla.mozilla.org/show_bug.cgi?id=1813424 • CWE-173: Improper Handling of Alternate Encoding •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

16 Feb 2023 — When encoding data from an inputStream in xpcom the size of the input being encoded was not correctly calculated potentially leading to an out of bounds memory write. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. The Mozilla Foundation Security Advisory describes this flaw as: When encoding data from an `inputStream` in `xpcom` the size of the input being encoded was not correctly calculated potentially leading to an out of bounds memory wr... • https://bugzilla.mozilla.org/show_bug.cgi?id=1804564 • CWE-787: Out-of-bounds Write •