High severity7.5NVD Advisory· Published Nov 25, 2017· Updated Jun 17, 2026
CVE-2017-16944
CVE-2017-16944
Description
The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
10- 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
9- bugs.exim.org/show_bug.cginvdExploitIssue Tracking
- www.securitytracker.com/id/1039873nvdThird Party AdvisoryVDB Entry
- www.debian.org/security/2017/dsa-4053nvdThird Party Advisory
- www.exploit-db.com/exploits/43184/nvdThird Party AdvisoryVDB Entry
- openwall.com/lists/oss-security/2017/11/25/1nvdMailing List
- openwall.com/lists/oss-security/2017/11/25/2nvdMailing List
- openwall.com/lists/oss-security/2017/11/25/3nvdMailing List
- lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.htmlnvdMailing List
- www.openwall.com/lists/oss-security/2021/05/04/7nvd
News mentions
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