CVE-2020-28024

Name
CVE-2020-28024
Description
Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF.
NVD Severity
high
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28024-UNGET.txt

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* exim >= 4.00: < 4.94.2:
cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* exim >= 4.00 < 4.94.2

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
exim edge-community 4.94.2-r1 Jesse Young <jlyo@jlyo.org> fixed
exim edge-community 4.94.2-r0 Jesse Young <jlyo@jlyo.org> fixed
exim edge-community 4.93-r1 None possibly vulnerable
exim edge-community 4.92.2-r1 None possibly vulnerable
exim edge-community 4.92.2-r0 None possibly vulnerable
exim edge-community 4.92.1-r0 None possibly vulnerable
exim edge-community 4.92-r0 None possibly vulnerable
exim edge-community 4.90.1-r0 None possibly vulnerable
exim edge-community 4.89.1-r0 None possibly vulnerable
exim edge-community 4.89-r7 None possibly vulnerable
exim edge-community 4.89-r5 None possibly vulnerable
exim 3.22-community 4.94.2-r0 None fixed
exim 3.22-community 4.93-r1 None possibly vulnerable
exim 3.22-community 4.92.2-r1 None possibly vulnerable
exim 3.22-community 4.92.2-r0 None possibly vulnerable
exim 3.22-community 4.92.1-r0 None possibly vulnerable
exim 3.22-community 4.92-r0 None possibly vulnerable
exim 3.22-community 4.90.1-r0 None possibly vulnerable
exim 3.22-community 4.89.1-r0 None possibly vulnerable
exim 3.22-community 4.89-r7 None possibly vulnerable
exim 3.22-community 4.89-r5 None possibly vulnerable
exim 3.21-community 4.94.2-r0 None fixed
exim 3.20-community 4.94.2-r0 None fixed
exim 3.19-community 4.94.2-r0 None fixed
exim 3.18-community 4.94.2-r0 None fixed
exim 3.17-community 4.94.2-r0 None fixed