CVE-2019-16928 KEV
9.8
CRITICAL · CVSS 3.1 · EPSS 41.6% (pctl 99)
Patch first
On CISA KEV — known exploited in the wild, due 2022-03-17.
Description
Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 41.64% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | yes — remediate by 2022-03-17 |
| Public exploit | none known |
| Published | 2019-09-27 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Exim Out-of-bounds Write Vulnerability |
|---|---|
| Added | 2022-03-03 |
| Due | 2022-03-17 |
| Vendor / product | Exim / Exim Internet Mailer |
| Ransomware use | none reported |
Affected (4)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| debian | debian linux |
| exim | exim |
| fedoraproject | fedora |
References
- http://www.openwall.com/lists/oss-security/2019/09/28/1
- http://www.openwall.com/lists/oss-security/2019/09/28/2
- http://www.openwall.com/lists/oss-security/2019/09/28/3
- http://www.openwall.com/lists/oss-security/2019/09/28/4
- https://bugs.exim.org/show_bug.cgi?id=2449
- https://git.exim.org/exim.git/commit/478effbfd9c3cc5a627fc671d4bf94d13670d65f
- https://lists.exim.org/lurker/message/20190927.032457.c1044d4c.en.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EED7HM3MFIBAP5OIMJAFJ35JAJABTVSC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T3TJW4HPYH3O5HZCWGD6NSHTEBTTAPDC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UY6HPRW7MR3KBQ5JFHH6OXM7YCZBJCOB/
- https://seclists.org/bugtraq/2019/Sep/60
- https://security.gentoo.org/glsa/202003-47
- https://usn.ubuntu.com/4141-1/
- https://www.debian.org/security/2019/dsa-4536
- http://www.openwall.com/lists/oss-security/2019/09/28/1
- http://www.openwall.com/lists/oss-security/2019/09/28/2
- http://www.openwall.com/lists/oss-security/2019/09/28/3
- http://www.openwall.com/lists/oss-security/2019/09/28/4
- https://bugs.exim.org/show_bug.cgi?id=2449
- https://git.exim.org/exim.git/commit/478effbfd9c3cc5a627fc671d4bf94d13670d65f
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