CVE-2017-17848 Security feature bypass in n/a

What is CVE-2017-17848?

CVE-2017-17848 is a high-severity vulnerability in Debian Debian Linux, published on 22 Dec 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Enigmail before 1.9.9. In a variant of CVE-2017-17847, signature spoofing is possible for multipart/related messages because a signed message part can be referenced with a cid: URI but not actually displayed. In other words, the entire containing message appears to be signed, but the recipient does not see any of the signed text.

Weakness: CWE-347

Which versions are affected by CVE-2017-17848?

It affects 2 products.

Products include Debian Debian Linux, Enigmail Enigmail.

How do I fix CVE-2017-17848?

Upgrade to a fixed version.

Is CVE-2017-17848 being exploited?

There is no known exploitation of CVE-2017-17848 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2017-17848, GHSA-gvxj-mgw2-9vg3, UBUNTU-CVE-2017-17848.