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CVE-2018-11781

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

7.8 HighFix available

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.98%Down 1.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 7.8

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Record
CVE-2018-11781
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0
4.6 MediumAV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-94
Updated
2026-11-02
CVE List No score

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Record
CVE-2018-11781
Updated
2026-11-02
EUVDEUVD-2018-3784 No score

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Record
EUVD-2018-3784
Updated
2026-11-03
GitHub AdvisoriesGHSA-qvvf-537j-pvg4 7.8

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Record
GHSA-qvvf-537j-pvg4
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-94
Updated
2026-11-02
OSVALPINE-CVE-2018-11781 7.8

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Record
ALPINE-CVE-2018-11781
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV 7.8

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Record
CVE-2018-11781
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 8 moreShow less
OSVDEBIAN-CVE-2018-11781 7.8

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Record
DEBIAN-CVE-2018-11781
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2018:2916 8.4

Red Hat Security Advisory: spamassassin security update

Record
RHSA-2018:2916
CVSS 3.0
8.4 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-11781 7.8

Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.

Record
UBUNTU-CVE-2018-11781
CVSS 3.0
7.8 HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2018-0425 No score

Updated spamassassin packages fix security vulnerabilities

Updated spamassassin package fixes security vulnerabilities:

A reliance on "." in @INC in one configuration script (CVE-2016-1238).

A denial of service vulnerability arises with certain unclosed tags in emails that cause markup to be handled incorrectly leading to scan timeouts (CVE-2017-15705).

A potential Remote Code Execution bug with the PDFInfo plugin (CVE-2018-11780).

A local user code injection in the meta rule syntax (CVE-2018-11781).

Record
MGASA-2018-0425
Updated
2026-11-02
OSVopenSUSE-SU-2019:1831-1 No score

Security update for spamassassin

This update for spamassassin to version 3.4.2 fixes the following issues:

Security issues fixed:

  • CVE-2018-11781: Fixed an issue where a local user could inject code in the meta rule syntax (bsc#1108748).
  • CVE-2018-11780: Fixed a potential remote code execution vulnerability in the PDFInfo plugin (bsc#1108750).
  • CVE-2017-15705: Fixed a denial of service through unclosed tags in crafted emails (bsc#1108745).
  • CVE-2016-1238: Fixed an issue where perl would load modules from the current directory (bsc#1108749).

Non-security issues fixed:

  • Use systemd timers instead of cron (bsc#1115411)
  • Fixed incompatibility with Net::DNS >= 1.01 (bsc#1107765)
  • Fixed warning about deprecated regex during sa-update (bsc#1069831)

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:1831-1
Updated
2026-11-02
OSVSUSE-SU-2019:1961-1 No score

Security update for spamassassin

This update for spamassassin to version 3.4.2 fixes the following issues:

Security issues fixed:

  • CVE-2017-15705: Fixed denial of service via unclosed tags in crafted emails (bsc#1108745).
  • CVE-2018-11781: Fixed a code injection in the meta rule syntax by local users (bsc#1108748).
  • CVE-2018-11780: Fixed a potential remote code execution vulnerability in PDFInfo plugin (bsc#1108750).

Non-security issues fixed:

  • Added four new plugins (disabled by default): HashBL, ResourceLimits, FromNameSpoof, Phishing
  • sa-update script: optional support for SHA-256 / SHA-512 been added for better validation of rules
  • GeoIP2 support has been added to RelayCountry and URILocalBL plugins
  • Several new or enhanced configuration options
Record
SUSE-SU-2019:1961-1
Updated
2026-11-02
OSVSUSE-SU-2019:2011-1 No score

Security update for spamassassin

This update for spamassassin to version 3.4.2 fixes the following issues:

Security issues fixed:

  • CVE-2018-11781: Fixed an issue where a local user could inject code in the meta rule syntax (bsc#1108748).
  • CVE-2018-11780: Fixed a potential remote code execution vulnerability in the PDFInfo plugin (bsc#1108750).
  • CVE-2017-15705: Fixed a denial of service through unclosed tags in crafted emails (bsc#1108745).
  • CVE-2016-1238: Fixed an issue where perl would load modules from the current directory (bsc#1108749).

Non-security issues fixed:

  • Use systemd timers instead of cron (bsc#1115411)
  • Fixed incompatibility with Net::DNS >= 1.01 (bsc#1107765)
  • Fixed warning about deprecated regex during sa-update (bsc#1069831)
Record
SUSE-SU-2019:2011-1
Updated
2026-11-02
OSVUSN-3811-1 No score

spamassassin vulnerabilities

It was discovered that SpamAssassin incorrectly handled certain unclosed tags in emails. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2017-15705)

It was discovered that SpamAssassin incorrectly handled the PDFInfo plugin. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11780)

It was discovered that SpamAssassin incorrectly handled meta rule syntax. A local attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11781)

Record
USN-3811-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
spamassassin
Alpine:v3.10
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.11
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.12
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.13
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.14
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.15
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.16
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.17
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.18
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.19
before 3.4.2-r0
3.4.2-r0
Show 31 moreShow less
Affected packages
PackageAffectedFixed
spamassassin
Alpine:v3.20
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.21
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.22
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.23
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.24
before 3.4.2-r0
3.4.2-r0
spamassassin
Alpine:v3.8
before 3.4.3-r0
3.4.3-r0
spamassassin
Alpine:v3.9
before 3.4.2-r0
3.4.2-r0
spamassassin
Debian:12
before 3.4.2-1
3.4.2-1
spamassassin
Debian:13
before 3.4.2-1
3.4.2-1
spamassassin
Debian:14
before 3.4.2-1
3.4.2-1
spamassassin
Debian:8
From an advisory covering 4 CVEs
before 3.4.2-0+deb8u1, plus listed versions
3.4.0-63.4.1-13.4.1-23.4.1-33.4.1-3~bpo8+1
Show 7 moreShow less
3.4.1-43.4.1-53.4.1-5.13.4.1-63.4.1-6~bpo8+13.4.1-73.4.1-8
3.4.2-0+deb8u1
spamassassin
Mageia:6
From an advisory covering 4 CVEs
before 3.4.2-1.5.mga6
3.4.2-1.5.mga6
spamassassin-rules
Mageia:6
From an advisory covering 4 CVEs
before 3.4.2-1.1.mga6
3.4.2-1.1.mga6
spamassassin
Red Hat:enterprise_linux:7::client
From an advisory covering 2 CVEs
before 0:3.4.0-4.el7_5
0:3.4.0-4.el7_5
spamassassin-debuginfo
Red Hat:enterprise_linux:7::client
From an advisory covering 2 CVEs
before 0:3.4.0-4.el7_5
0:3.4.0-4.el7_5
spamassassin
Red Hat:enterprise_linux:7::server
From an advisory covering 2 CVEs
before 0:3.4.0-4.el7_5
0:3.4.0-4.el7_5
spamassassin-debuginfo
Red Hat:enterprise_linux:7::server
From an advisory covering 2 CVEs
before 0:3.4.0-4.el7_5
0:3.4.0-4.el7_5
spamassassin
Red Hat:enterprise_linux:7::workstation
From an advisory covering 2 CVEs
before 0:3.4.0-4.el7_5
0:3.4.0-4.el7_5
spamassassin-debuginfo
Red Hat:enterprise_linux:7::workstation
From an advisory covering 2 CVEs
before 0:3.4.0-4.el7_5
0:3.4.0-4.el7_5
spamassassin
SUSE:Linux Enterprise Desktop 12 SP4
From an advisory covering 4 CVEs
before 3.4.2-44.3.1
3.4.2-44.3.1
spamassassin
SUSE:Linux Enterprise Server 12 SP4
From an advisory covering 4 CVEs
before 3.4.2-44.3.1
3.4.2-44.3.1
spamassassin
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
From an advisory covering 4 CVEs
before 3.4.2-44.3.1
3.4.2-44.3.1
spamassassin
SUSE:Linux Enterprise Module for Basesystem 15
From an advisory covering 4 CVEs
before 3.4.2-7.4.1
3.4.2-7.4.1
spamassassin
SUSE:Linux Enterprise Module for Development Tools 15
From an advisory covering 4 CVEs
before 3.4.2-7.4.1
3.4.2-7.4.1
spamassassin
Ubuntu:14.04:LTS
before 3.4.2-0ubuntu0.14.04.1, plus listed versions
3.3.2-6ubuntu23.3.2-8ubuntu13.3.2-8ubuntu23.4.0-13.4.0-1ubuntu13.4.0-1ubuntu23.4.0-1ubuntu2.1
3.4.2-0ubuntu0.14.04.1
spamassassin
Ubuntu:16.04:LTS
before 3.4.2-0ubuntu0.16.04.1, plus listed versions
3.4.1-13.4.1-23.4.1-3
3.4.2-0ubuntu0.16.04.1
spamassassin
Ubuntu:18.04:LTS
before 3.4.2-0ubuntu0.18.04.1, plus listed versions
3.4.1-73.4.1-83.4.1-8build1
3.4.2-0ubuntu0.18.04.1
spamassassin
Ubuntu:14.04:LTS
From an advisory covering 3 CVEs
before 3.4.2-0ubuntu0.14.04.1, plus listed versions
3.3.2-6ubuntu23.3.2-8ubuntu13.3.2-8ubuntu23.4.0-13.4.0-1ubuntu13.4.0-1ubuntu23.4.0-1ubuntu2.1
3.4.2-0ubuntu0.14.04.1
spamassassin
Ubuntu:16.04:LTS
From an advisory covering 3 CVEs
before 3.4.2-0ubuntu0.16.04.1, plus listed versions
3.4.1-13.4.1-23.4.1-3
3.4.2-0ubuntu0.16.04.1
spamassassin
Ubuntu:18.04:LTS
From an advisory covering 3 CVEs
before 3.4.2-0ubuntu0.18.04.1, plus listed versions
3.4.1-73.4.1-83.4.1-8build1
3.4.2-0ubuntu0.18.04.1
spamassassin
openSUSE:Leap 15.0
From an advisory covering 4 CVEs
before 3.4.2-lp150.6.3.1
3.4.2-lp150.6.3.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-11781 is a high vulnerability (CVSS 7.8) in Apache Spamassassin, published September 17, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.98%, the 62nd percentile. Fixed in spamassassin 3.4.2-r0.

References

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