VulnerabilityAnalyzed
CVE-2019-10149
Exim Mail Transfer Agent (MTA) Improper Input Validation
KEVCRITICAL 9.8EPSS 100.0%
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 10 July 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 99.96% probability · 100th percentile
- CISA KEV
- Listed 10 January 2022 · due 10 July 2022
- Weakness
- CWE-78
- Affected
- exim/exim · canonical/ubuntu linux · debian/debian linux
- Source
- secalert@redhat.com
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-10149
References
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00020.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/153218/Exim-4.9.1-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/153312/Exim-4.91-Local-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/154198/Exim-4.91-Local-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2019/Jun/16Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/05/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/05/3Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/05/4Exploit, Mailing List
- http://www.openwall.com/lists/oss-security/2019/06/06/1Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/07/25/6Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/07/25/7Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/07/26/4Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/05/04/7Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/108679Broken Link, Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10149Issue Tracking, Third Party Advisory
- https://seclists.org/bugtraq/2019/Jun/5Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201906-01Third Party Advisory
- https://usn.ubuntu.com/4010-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4456Third Party Advisory
- https://www.exim.org/static/doc/security/CVE-2019-10149.txtVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00020.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/153218/Exim-4.9.1-Remote-Command-Execution.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/153312/Exim-4.91-Local-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/154198/Exim-4.91-Local-Privilege-Escalation.htmlExploit, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2019/Jun/16Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/05/2Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/05/3Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/06/05/4Exploit, Mailing List
- http://www.openwall.com/lists/oss-security/2019/06/06/1Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/07/25/6Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.