What’s Vulnerable › Vulnerabilities

CVE-2018-11805

• Severity: medium (CVSS 6.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-12-12 · updated 2026-06-17
• Weakness: CWE-78

Description

In Apache SpamAssassin before 3.4.3, nefarious CF files can be configured to run system commands without any output or errors. With this, exploits can be injected in a number of scenarios. In addition to upgrading to SA 3.4.3, we recommend that users should only use update channels or 3rd party .cf files from trusted places.

Affected products

• Apache Software Foundation Apache SpamAssassin: before 3.4.3 — fixed in 3.4.3
• Debian Linux: 8.0, 9.0, 10.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache SpamAssassin 3.4.3. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00003.html
• http://www.openwall.com/lists/oss-security/2019/12/12/1
• http://www.openwall.com/lists/oss-security/2020/01/30/2
• http://www.openwall.com/lists/oss-security/2020/01/30/3
• https://bz.apache.org/SpamAssassin/show_bug.cgi?id=7647
• https://lists.apache.org/thread.html/0b5c73809d0690527341d940029f743807b70550050fd23ee869c5e5%40%3Cusers.spamassassin.apache.org%3E
• https://lists.apache.org/thread.html/2946b38caec47f7f6a79e8e03d2aa723794186e59a7dc6b5e76dfc18%40%3Cannounce.spamassassin.apache.org%3E
• https://lists.apache.org/thread.html/6f89f82a573ea616dce53ec67e52d963618a9f9ac71da5c1efdbd166%40%3Cusers.spamassassin.apache.org%3E
• https://lists.apache.org/thread.html/8534b60bae95ac3a8a4adb840f4ab26135f1c973ce197ff44439cbae%40%3Cusers.spamassassin.apache.org%3E
• https://lists.apache.org/thread.html/bc58907171c6585e5875a3ce86066d4956c218911cb74e3156de4433%40%3Cannounce.apache.org%3E
• https://lists.apache.org/thread.html/c1f59b7e13b7f2c12f847f7d0dec2636df3cdbcaa6d8309007395ff4%40%3Cusers.spamassassin.apache.org%3E
• https://lists.apache.org/thread.html/d015dc5b4f24fd6777a85d068502a9c5d58d69d877ed5b0eb9a22cd5%40%3Cdev.spamassassin.apache.org%3E

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