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PRIOn knowledge basePRION:CVE-2023-29542

HistoryJun 19, 2023 - 11:15 a.m.

Design/Logic Flaw

2023-06-1911:15:00

PRIOn knowledge base

www.prio-n.com

newline bypass

file extension security

malicious code execution

firefox vulnerability

thunderbird vulnerability

windows security

8.8 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

59.9%

JSON

A newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as .lnk with .download. This could have led to accidental execution of malicious code.

This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected. This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10.

CPENameOperatorVersion
firefoxlt112.0
firefox_esrlt102.10
thunderbirdlt102.10

Name	Operator	Version
firefox	lt	112.0
firefox_esr	lt	102.10
thunderbird	lt	102.10

References

bugzilla.mozilla.org/show_bug.cgi?id=1810793

bugzilla.mozilla.org/show_bug.cgi?id=1815062

www.mozilla.org/security/advisories/mfsa2023-13/

www.mozilla.org/security/advisories/mfsa2023-14/

www.mozilla.org/security/advisories/mfsa2023-15/