Known exploited vulnerability
CVE-2019-10149
The short answer
CVE-2019-10149 affects exim exim and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-01-10: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-78.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Jan 10, 2022
Federal due date Jul 10, 2022
EPSS, next 30 days
100%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
exim. NVD's record lists the exact affected versions.
References
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10149 Issue TrackingThird Party Advisory
- seclists.org/bugtraq/2019/Jun/5 Mailing ListThird Party Advisory
- security.gentoo.org/glsa/201906-01 Third Party Advisory
- usn.ubuntu.com/4010-1/ Third Party Advisory
- www.debian.org/security/2019/dsa-4456 Third Party Advisory
- www.exim.org/static/doc/security/CVE-2019-10149.txt Vendor Advisory
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10149 Issue TrackingThird Party Advisory
- seclists.org/bugtraq/2019/Jun/5 Mailing ListThird Party Advisory
- security.gentoo.org/glsa/201906-01 Third Party Advisory
- usn.ubuntu.com/4010-1/ Third Party Advisory
- www.debian.org/security/2019/dsa-4456 Third Party Advisory
- www.exim.org/static/doc/security/CVE-2019-10149.txt Vendor Advisory
Questions
Is CVE-2019-10149 being exploited?
Yes. CISA added CVE-2019-10149 to its Known Exploited Vulnerabilities catalog on 2022-01-10, with a federal remediation due date of 2022-07-10.
How do I fix CVE-2019-10149?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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