Vulnerability Monitor

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CVE-2019-16928

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.

Published

2019-09-27T21:15:10.017

Last Modified

2025-03-07T14:41:33.507

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-787
Type: Secondary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	exim	exim	≤ 4.92.2	Yes
Operating System	canonical	ubuntu_linux	19.04	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	fedoraproject	fedora	29	Yes
Operating System	fedoraproject	fedora	30	Yes
Operating System	fedoraproject	fedora	31	Yes

References

http://www.openwall.com/lists/oss-security/2019/09/28/1 Exploit, Mailing List, Mitigation, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/09/28/2 Exploit, Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/09/28/3 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/09/28/4 Mailing List, Third Party Advisory ([email protected])
https://bugs.exim.org/show_bug.cgi?id=2449 Issue Tracking, Patch, Vendor Advisory ([email protected])
https://git.exim.org/exim.git/commit/478effbfd9c3cc5a627fc671d4bf94d13670d65f Patch ([email protected])
https://lists.exim.org/lurker/message/20190927.032457.c1044d4c.en.html Vendor Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EED7HM3MFIBAP5OIMJAFJ35JAJABTVSC/ Release Notes ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T3TJW4HPYH3O5HZCWGD6NSHTEBTTAPDC/ Release Notes ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UY6HPRW7MR3KBQ5JFHH6OXM7YCZBJCOB/ Release Notes ([email protected])
https://seclists.org/bugtraq/2019/Sep/60 Mailing List, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202003-47 Third Party Advisory ([email protected])
https://usn.ubuntu.com/4141-1/ Third Party Advisory ([email protected])
https://www.debian.org/security/2019/dsa-4536 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/09/28/1 Exploit, Mailing List, Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/09/28/2 Exploit, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/09/28/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/09/28/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.exim.org/show_bug.cgi?id=2449 Issue Tracking, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.exim.org/exim.git/commit/478effbfd9c3cc5a627fc671d4bf94d13670d65f Patch (af854a3a-2127-422b-91ae-364da2661108)
https://lists.exim.org/lurker/message/20190927.032457.c1044d4c.en.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EED7HM3MFIBAP5OIMJAFJ35JAJABTVSC/ Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T3TJW4HPYH3O5HZCWGD6NSHTEBTTAPDC/ Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UY6HPRW7MR3KBQ5JFHH6OXM7YCZBJCOB/ Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://seclists.org/bugtraq/2019/Sep/60 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202003-47 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4141-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2019/dsa-4536 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)