High severity7.5NVD Advisory· Published Jul 13, 2017· Updated Jun 17, 2026
CVE-2017-9789
CVE-2017-9789
Description
When under stress, closing many connections, the HTTP/2 handling code in Apache httpd 2.4.26 would sometimes access memory after it has been freed, resulting in potentially erratic behaviour.
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Affected products
10cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:*
- (no CPE)range: 2.4.26
- osv-coords7 versionspkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3
< 2.4.23-29.13.1+ 6 more
- (no CPE)range: < 2.4.23-29.13.1
- (no CPE)range: < 2.4.23-29.13.1
- (no CPE)range: < 2.4.23-29.13.1
- (no CPE)range: < 2.4.23-29.13.1
- (no CPE)range: < 2.4.23-29.13.1
- (no CPE)range: < 2.4.23-29.13.1
- (no CPE)range: < 2.4.23-29.13.1
Patches
Vulnerability mechanics
References
22- www.securityfocus.com/bid/99568nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1038907nvdThird Party AdvisoryVDB Entry
- httpd.apache.org/security/vulnerabilities_24.htmlnvdRelease NotesVendor Advisory
- lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/9d0098775bd83cf7c33ac5a077ef412c14ce939198921e639c734e20%40%3Cannounce.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r15f9aa4427581a1aecb4063f1b4b983511ae1c9935e2a0a6876dad3c%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3Envd
- lists.apache.org/thread.html/rfcf929bd33a6833e3f0c35eebdad70d5060665f9c4e17ea467c66770%40%3Ccvs.httpd.apache.org%3Envd
- security.gentoo.org/glsa/201710-32nvd
- security.netapp.com/advisory/ntap-20170911-0002/nvd
- support.apple.com/HT208221nvd
- support.hpe.com/hpsc/doc/public/displaynvd
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