CVE-2023-29539

Mozilla Firefox and 4 others: When handling the filename directive in the Content-Disposition header, the filename would be truncated…

CVE-2023-29539 is fixed in 14 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
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0074
54th percentile

When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

Where it's fixed

ProductFixed inFixReleased
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
Mozilla Thunderbird (en-US) 115.8.0 Mozilla Thunderbird (en-US) 115.8.0 Feb 21, 2024
Linux
firefox · RHEL 8 0:102.10.0-1.el8_7 RHSA-2023:1787 Apr 14, 2023
firefox · RHEL 9 0:102.10.0-1.el9_1 RHSA-2023:1786 Apr 14, 2023
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 · almalinux 8 102.10.0-1.el8_7.alma ALSA-2023:1787 Apr 14, 2023
firefox · almalinux 9 102.10.0-1.el9_1.alma ALSA-2023:1786 Apr 14, 2023
firefox · ol 8 0:102.10.0-1.0.1.el8_7 ELSA-2023-1787 Apr 14, 2023
firefox · ol 9 0:102.10.0-1.0.1.el9_1 ELSA-2023-1786 Apr 14, 2023
firefox-esr · Debian 12.15 (bookworm) 102.10.0esr-1 DEBIAN-CVE-2023-29539 Jun 2, 2023
firefox-esr · Debian 13.5 (trixie) 102.10.0esr-1 DEBIAN-CVE-2023-29539 Jun 2, 2023
firefox-esr · Debian 14 102.10.0esr-1 DEBIAN-CVE-2023-29539 Jun 2, 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
firefox-x11 · RHEL 9 0:102.10.0-1.el9_1 RHSA-2023:1786 Apr 14, 2023
firefox-x11 · almalinux 9 102.10.0-1.el9_1.alma ALSA-2023:1786 Apr 14, 2023
firefox-x11 · ol 9 0:102.10.0-1.0.1.el9_1 ELSA-2023-1786 Apr 14, 2023
thunderbird · Debian 12.15 (bookworm) 1:102.10.0-1 DEBIAN-CVE-2023-29539 Jun 2, 2023
thunderbird · Debian 13.5 (trixie) 1:102.10.0-1 DEBIAN-CVE-2023-29539 Jun 2, 2023
thunderbird · Debian 14 1:102.10.0-1 DEBIAN-CVE-2023-29539 Jun 2, 2023
thunderbird · RHEL 8 0:102.10.0-2.el8_7 RHSA-2023:1802 Apr 17, 2023
thunderbird · RHEL 9 0:102.10.0-2.el9_1 RHSA-2023:1809 Apr 17, 2023
thunderbird · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 thunderbird 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
thunderbird · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 thunderbird 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
thunderbird · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 thunderbird 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
thunderbird · almalinux 8 102.10.0-2.el8_7.alma ALSA-2023:1802 Apr 17, 2023
thunderbird · almalinux 9 102.10.0-2.el9_1.alma ALSA-2023:1809 Apr 17, 2023
thunderbird · ol 8 0:102.10.0-2.0.1.el8_7 ELSA-2023-1802 Apr 18, 2023
thunderbird · ol 9 0:102.10.0-2.0.1.el9_1 ELSA-2023-1809 Apr 18, 2023
thunderbird · rocky 8 0:102.10.0-2.el8_7 RLSA-2023:1802 Apr 26, 2023
thunderbird · rocky 9 0:102.10.0-2.el9_1 RLSA-2023:1809 Apr 26, 2023
thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 thunderbird-gnome-support 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 thunderbird-gnome-support 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 thunderbird-gnome-support 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 thunderbird-mozsymbols 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 thunderbird-mozsymbols 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 thunderbird-mozsymbols 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 xul-ext-calendar-timezones 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 xul-ext-calendar-timezones 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 xul-ext-calendar-timezones 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 xul-ext-gdata-provider 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 xul-ext-gdata-provider 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 xul-ext-gdata-provider 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 xul-ext-lightning 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
xul-ext-lightning · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 xul-ext-lightning 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 xul-ext-lightning 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023

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