CVE-2023-29543

Mozilla Firefox and 2 others: Improper Encoding or Escaping of Output

CVE-2023-29543 is fixed in 5 products on 2 platforms, first by firefox 112.0+build2-0ubuntu0.18.04.1, released April 11, 2023. It is not reported as exploited. Patch Radar priority: High.

HighFixed on 2 platforms

CVSS

8.8

Medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0053

44th percentile

An attacker could have caused memory corruption and a potentially exploitable use-after-free of a pointer in a global object's debugger vector. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Mozilla Firefox (en-US)	112.0	Mozilla Firefox (en-US) 112.0	Apr 12, 2023
Mozilla Firefox ESR (en-US)	115.4.0	Mozilla Firefox ESR (en-US) 115.4.0	Oct 17, 2023
Linux
firefox · Ubuntu 18.04.6 LTS (bionic)	112.0+build2-0ubuntu0.18.04.1	firefox 112.0+build2-0ubuntu0.18.04.1	Apr 11, 2023
firefox · Ubuntu 20.04 LTS (focal)	112.0+build2-0ubuntu0.20.04.1	firefox 112.0+build2-0ubuntu0.20.04.1	Apr 11, 2023
firefox-geckodriver · Ubuntu 18.04.6 LTS (bionic)	112.0+build2-0ubuntu0.18.04.1	firefox-geckodriver 112.0+build2-0ubuntu0.18.04.1	Apr 11, 2023
firefox-geckodriver · Ubuntu 20.04 LTS (focal)	112.0+build2-0ubuntu0.20.04.1	firefox-geckodriver 112.0+build2-0ubuntu0.20.04.1	Apr 11, 2023
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic)	112.0+build2-0ubuntu0.18.04.1	firefox-mozsymbols 112.0+build2-0ubuntu0.18.04.1	Apr 11, 2023
firefox-mozsymbols · Ubuntu 20.04 LTS (focal)	112.0+build2-0ubuntu0.20.04.1	firefox-mozsymbols 112.0+build2-0ubuntu0.20.04.1	Apr 11, 2023

Details

Published
April 11, 2023
Weakness
CWE-116: Improper Encoding or Escaping of Output
Vendor advisory
https://nvd.nist.gov/vuln/detail/CVE-2023-29543

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