Critical severity9.8NVD Advisory· Published May 6, 2021· Updated Jun 17, 2026
CVE-2020-28018
CVE-2020-28018
Description
Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
9- Exim/Eximdescription
- osv-coords6 versionspkg:rpm/opensuse/exim&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/exim&distro=openSUSE%20Tumbleweedpkg:rpm/suse/exim&distro=SUSE%20Package%20Hub%2015%20SP1pkg:rpm/suse/exim&distro=SUSE%20Package%20Hub%2015%20SP2pkg:rpm/suse/libspf2&distro=SUSE%20Package%20Hub%2015%20SP1pkg:rpm/suse/libspf2&distro=SUSE%20Package%20Hub%2015%20SP2
< 4.94.2-lp152.8.3.1+ 5 more
- (no CPE)range: < 4.94.2-lp152.8.3.1
- (no CPE)range: < 4.94.2-4.2
- (no CPE)range: < 4.94.2-bp151.2.4.1
- (no CPE)range: < 4.94.2-bp152.6.4.1
- (no CPE)range: < 1.2.10-bp151.4.1
- (no CPE)range: < 1.2.10-bp152.5.1
Patches
Vulnerability mechanics
References
8- www.openwall.com/lists/oss-security/2021/05/11/14nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/11/15nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/11/17nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/11/5nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/11/6nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/12/2nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/05/12/3nvdMailing ListThird Party Advisory
- www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28018-OCORK.txtnvdVendor Advisory
News mentions
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