Vulnerability · Published Jun 19, 2023 · Assigned by mozilla

CVE-2023-29545

Medium 6.5

In plain English

A medium-severity security flaw in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.6%top 51.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have resolved those in the context of the current user. *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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20firefox-esr102.10.0-r0ALPINE-CVE-2023-29545
Alpine:v3.21firefox-esr102.10.0-r0ALPINE-CVE-2023-29545
Alpine:v3.22firefox-esr102.10.0-r0ALPINE-CVE-2023-29545
Alpine:v3.23firefox-esr102.10.0-r0ALPINE-CVE-2023-29545
Ubuntu:22.04:LTSmozjs78no fix listedUBUNTU-CVE-2023-29545
Ubuntu:22.04:LTSmozjs91no fix listedUBUNTU-CVE-2023-29545

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 112
Mozilla Firefox ESR unspecified – before 102.10
Mozilla Thunderbird unspecified – before 102.10

References