CVE-2018-11805
CVE-2018-11805 is a medium-severity vulnerability in Apache Spamassassin with a CVSS 3.x base score of 6.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Medium (CVSS 3.x base score 6.7)
- CVSS v2: 7.2
- EPSS exploit prediction: 1% (54th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-78
- Affected product: Apache Spamassassin
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2018-11805?
- 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.
- How severe is CVE-2018-11805?
- CVE-2018-11805 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2018-11805 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-11805?
- CVE-2018-11805 primarily affects Apache Spamassassin. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2018-11805?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-11805 published?
- CVE-2018-11805 was published on 2019-12-12 and last updated on 2026-06-17.
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
- https://lists.apache.org/thread.html/r217177f7de36deab36dab88db4b6448961122571176dd4b2c133d08e%40%3Cannounce.spamassassin.apache.org%3E
- https://lists.apache.org/thread.html/r2578c486552637bfedbe624940cc60d6463bd90044c887bdebb75e74%40%3Cusers.spamassassin.apache.org%3E
- https://lists.apache.org/thread.html/r3d32ebf97b1245b8237763444e911c4595d2ad5e34a1641840d8146f%40%3Cusers.spamassassin.apache.org%3E
- https://lists.apache.org/thread.html/r6729f3d3be754a06c39bb4f11c925a3631e8ea2b4c865546d755cb0a%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/r6729f3d3be754a06c39bb4f11c925a3631e8ea2b4c865546d755cb0a%40%3Cdev.spamassassin.apache.org%3E
- https://lists.apache.org/thread.html/r6729f3d3be754a06c39bb4f11c925a3631e8ea2b4c865546d755cb0a%40%3Cusers.spamassassin.apache.org%3E
- https://lists.apache.org/thread.html/r71f789fcd6339144e3d4db8f4128def12c341e638bd0107a0b82a05b%40%3Cannounce.spamassassin.apache.org%3E
- https://lists.apache.org/thread.html/rc4df9835fb2d7b5bb1202fca99a1de21a40acef055661d3a9e8ae781%40%3Cannounce.apache.org%3E
- https://lists.apache.org/thread.html/rc4df9835fb2d7b5bb1202fca99a1de21a40acef055661d3a9e8ae781%40%3Cdev.spamassassin.apache.org%3E
- https://lists.apache.org/thread.html/rc4df9835fb2d7b5bb1202fca99a1de21a40acef055661d3a9e8ae781%40%3Cusers.spamassassin.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2019/12/msg00019.html
- https://seclists.org/bugtraq/2019/Dec/27
- https://seclists.org/oss-sec/2019/q4/154
- https://svn.apache.org/repos/asf/spamassassin/branches/3.4/build/announcements/3.4.3.txt
- https://usn.ubuntu.com/4237-1/
- https://usn.ubuntu.com/4237-2/
- https://www.debian.org/security/2019/dsa-4584
Affected products (4)
- cpe:2.3:a:apache:spamassassin:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
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