High severity7.5NVD Advisory· Published Jul 27, 2017· Updated Jun 17, 2026
CVE-2016-2161
CVE-2016-2161
Description
In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
30cpe:2.3:a:apache:http_server:2.4.0:*:*:*:*:*:*:*+ 18 more
- cpe:2.3:a:apache:http_server:2.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.19:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.21:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.22:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.8:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*
- (no CPE)range: 2.4.0 - 2.4.23
- (no CPE)range: 2.4.0 to 2.4.23
- osv-coords11 versionspkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1pkg:rpm/suse/apache2&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2pkg:rpm/suse/apache2&distro=SUSE%20Studio%20Onsite%201.3
< 2.2.12-69.1+ 10 more
- (no CPE)range: < 2.2.12-69.1
- (no CPE)range: < 2.4.16-19.1
- (no CPE)range: < 2.4.23-21.1
- (no CPE)range: < 2.4.23-21.1
- (no CPE)range: < 2.2.12-69.1
- (no CPE)range: < 2.4.16-19.1
- (no CPE)range: < 2.4.23-21.1
- (no CPE)range: < 2.2.12-69.1
- (no CPE)range: < 2.4.16-19.1
- (no CPE)range: < 2.4.23-21.1
- (no CPE)range: < 2.2.12-69.1
Patches
Vulnerability mechanics
References
27- www.securityfocus.com/bid/95076nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1037508nvdThird Party AdvisoryVDB Entry
- h20566.www2.hpe.com/hpsc/doc/public/displaynvdThird Party Advisory
- httpd.apache.org/security/vulnerabilities_24.htmlnvdVendor Advisory
- security.gentoo.org/glsa/201701-36nvdThird Party Advisory
- rhn.redhat.com/errata/RHSA-2017-1415.htmlnvd
- www.debian.org/security/2017/dsa-3796nvd
- access.redhat.com/errata/RHSA-2017:0906nvd
- access.redhat.com/errata/RHSA-2017:1161nvd
- access.redhat.com/errata/RHSA-2017:1413nvd
- access.redhat.com/errata/RHSA-2017:1414nvd
- 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/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%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/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%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/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%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
- security.netapp.com/advisory/ntap-20180423-0001/nvd
- support.apple.com/HT208221nvd
- www.tenable.com/security/tns-2017-04nvd
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