Unrated severityNVD Advisory· Published Aug 13, 2019· Updated Aug 4, 2024
Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service
CVE-2019-9515
Description
Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
Affected products
26- HTTP/2/HTTP/2description
- osv-coords25 versionspkg:rpm/almalinux/nodejs-nodemonpkg:rpm/almalinux/nodejs-packagingpkg:rpm/opensuse/nodejs10&distro=openSUSE%20Leap%2015.0pkg:rpm/opensuse/nodejs10&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/nodejs8&distro=openSUSE%20Leap%2015.0pkg:rpm/opensuse/nodejs8&distro=openSUSE%20Leap%2015.1pkg:rpm/suse/firefox-atk&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-cairo&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-gdk-pixbuf&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-glib2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-harfbuzz&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-libffi&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-libffi-gcc5&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/firefox-pango&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/MozillaFirefox-branding-SLED&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/mozilla-nspr&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2012pkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015pkg:rpm/suse/nodejs10&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP1pkg:rpm/suse/nodejs12&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2012pkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015pkg:rpm/suse/nodejs8&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Web%20and%20Scripting%2015%20SP1
< 1.18.3-1.module_el8.3.0+2023+d2377ea3+ 24 more
- (no CPE)range: < 1.18.3-1.module_el8.3.0+2023+d2377ea3
- (no CPE)range: < 17-3.module_el8.4.0+2224+b07ac28e
- (no CPE)range: < 10.16.3-lp151.2.6.1
- (no CPE)range: < 10.16.3-lp151.2.6.1
- (no CPE)range: < 8.16.1-lp151.2.6.1
- (no CPE)range: < 8.16.1-lp151.2.6.1
- (no CPE)range: < 2.26.1-2.8.4
- (no CPE)range: < 1.15.10-2.13.4
- (no CPE)range: < 2.36.11-2.8.4
- (no CPE)range: < 2.54.3-2.14.7
- (no CPE)range: < 3.10.9-2.15.3
- (no CPE)range: < 1.7.5-2.7.4
- (no CPE)range: < 3.2.1.git259-2.3.3
- (no CPE)range: < 5.3.1+r233831-14.1
- (no CPE)range: < 1.40.14-2.7.4
- (no CPE)range: < 68-21.9.8
- (no CPE)range: < 68.2.0-78.51.4
- (no CPE)range: < 4.21-29.6.1
- (no CPE)range: < 3.45-38.9.3
- (no CPE)range: < 10.16.3-1.12.1
- (no CPE)range: < 10.16.3-1.12.1
- (no CPE)range: < 10.16.3-1.12.1
- (no CPE)range: < 12.13.0-1.3.1
- (no CPE)range: < 8.16.1-3.20.1
- (no CPE)range: < 8.16.1-3.20.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
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- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP/mitrevendor-advisoryx_refsource_FEDORA
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- kc.mcafee.com/corporate/indexmitrex_refsource_CONFIRM
- lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04%40%3Cusers.trafficserver.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19%40%3Cannounce.trafficserver.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7%40%3Cdev.trafficserver.apache.org%3Emitremailing-listx_refsource_MLIST
- seclists.org/bugtraq/2019/Aug/24mitremailing-listx_refsource_BUGTRAQ
- seclists.org/bugtraq/2019/Aug/43mitremailing-listx_refsource_BUGTRAQ
- seclists.org/bugtraq/2019/Sep/18mitremailing-listx_refsource_BUGTRAQ
- security.netapp.com/advisory/ntap-20190823-0005/mitrex_refsource_CONFIRM
- support.f5.com/csp/article/K50233772mitrex_refsource_CONFIRM
- support.f5.com/csp/article/K50233772mitrex_refsource_CONFIRM
- www.synology.com/security/advisory/Synology_SA_19_33mitrex_refsource_CONFIRM
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