CVE-2020-12418

Details

Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Affected Packages

Firefox

Ubuntu 14.04 LTSUbuntu 16.04 LTSUbuntu 18.04 LTSUbuntu 20.04 LTSUbuntu 22.04 LTS

Fixed in:

78

Mozilla Firefox

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1809) / Server 2019Windows 10 (1903)Windows 10 (1909)

Fixed in:

78

Mozilla Firefox ESR

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1809) / Server 2019Windows 10 (1903)Windows 10 (1909)

Fixed in:

68.10

Firefox ESR

macOS 14macOS 15macOS 26

Fixed in:

68.10

References

ADVISORY

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html

ADVISORY

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html

ADVISORY

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html

ADVISORY

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html

WEB

https://bugzilla.mozilla.org/show_bug.cgi?id=1641303

ADVISORY

https://security.gentoo.org/glsa/202007-09

ADVISORY

https://security.gentoo.org/glsa/202007-10

ADVISORY

https://usn.ubuntu.com/4421-1/

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2020-12418

WEB

https://www.mozilla.org/security/advisories/mfsa2020-24/

WEB

https://www.mozilla.org/security/advisories/mfsa2020-25/

WEB

https://www.mozilla.org/security/advisories/mfsa2020-26/