medium
4.3
CWE
200
Advisory Published
CVE Published
Updated

CVE-2018-12374: Infoleak

First published: Tue Jul 03 2018(Updated: )

A flaw was found in Mozilla Thunderbird before version 52.9. Plaintext of decrypted emails can leak through by user submitting an embedded form by pressing enter key within a text input field. References: <a href="https://www.mozilla.org/en-US/security/advisories/mfsa2018-18/#CVE-2018-12374">https://www.mozilla.org/en-US/security/advisories/mfsa2018-18/#CVE-2018-12374</a>

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
redhat/thunderbird<52.9
52.9
debian/thunderbird
1:115.12.0-1~deb11u1
1:128.7.0esr-1~deb11u1
1:128.5.0esr-1~deb12u1
1:128.7.0esr-1~deb12u1
1:128.6.0esr-1
1:128.7.0esr-1
Thunderbird<52.9.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux=7.5
Red Hat Enterprise Linux=7.6
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Debian=8.0
Debian=9.0
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=17.10
Ubuntu=18.04
Thunderbird<52.9
52.9

Remedy

https://lists.debian.org/debian-lts-announce/2018/07/msg00013.html

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2018-12374?

    CVE-2018-12374 is classified as a moderate severity vulnerability.

  • How do I fix CVE-2018-12374?

    To fix CVE-2018-12374, upgrade Mozilla Thunderbird to version 52.9 or later.

  • Who is affected by CVE-2018-12374?

    CVE-2018-12374 affects all versions of Mozilla Thunderbird before version 52.9.

  • What is the impact of CVE-2018-12374?

    The impact of CVE-2018-12374 is that the plaintext of decrypted emails can be unintentionally leaked when submitting an embedded form.

  • Is there a workaround for CVE-2018-12374?

    A temporary workaround for CVE-2018-12374 is to refrain from using forms in Thunderbird until the software is updated.

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