PT-2017-15044 · Enigmail · Enigmail

Jens Müller · Published 2017-12-21 · Updated 2019-05-16 · CVE-2017-17848

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions Enigmail versions prior to 1.9.9

Description An issue in Enigmail allows signature spoofing for multipart/related messages. This occurs because a signed message part can be referenced with a cid: URI but not actually displayed, making the entire containing message appear signed when it is not. The recipient does not see any of the signed text, potentially leading to misleading information about the message's authenticity.

Recommendations For versions prior to 1.9.9, update to version 1.9.9 or later to resolve the issue. As a temporary workaround, consider verifying the authenticity of messages through alternative means until the update can be applied.

Fix

Improper Verification of Cryptographic Signature

Weakness Enumeration

CWE-347

Related Identifiers

CVE-2017-17848

DLA-1219-1

DSA-4070-1

MGASA-2017-0477

Affected Products

Enigmail

References · 22

• https://osv.dev/vulnerability/CVE-2017-17848 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4070-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-17848 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17848 · Vendor Advisory
• https://debian.org/security/2017/dsa-4070 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-17848 · Security Note
• https://advisories.mageia.org/MGASA-2017-0477.html · Security Note
• https://osv.dev/vulnerability/MGASA-2017-0477 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-17848 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-17848 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-17848 · Vendor Advisory
• https://mozilla.org/en-US/security/advisories/mfsa2017-30 · Vendor Advisory
• https://github.com/RUB-NDS/Johnny-You-Are-Fired · Note
• https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf · Note
• http://openwall.com/lists/oss-security/2019/04/30/4 · Note