Improper Restriction of Operations within the Bounds of a Memory Buffer in Apache Tomcat

Also known as GHSA-698c-2x4j-g9gq

Published 9 y ago 2017-08-10 · modified 4 mo ago 2026-06-17 · JSON

CVSS

7.5

v3.1 · CNA

CISA KEV

not known exploited

EPSS

7.2%

percentile 94%

Public exploits

none known

The HTTP/2 header parser in Apache Tomcat 9.0.0.M1 to 9.0.0.M11 and 8.5.0 to 8.5.6 entered an infinite loop if a header was received that was larger than the available buffer. This made a denial of service attack possible.

CISA SSVC assessment

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 2 y ago 2024-10-15

Exploit prediction (EPSS)

7.19% probability of exploitation in the next 30 days, higher than 94% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CISA ADP	3.1	7.5	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CNA	3.1	7.5	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
NVD	3.0	7.5	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
NVD	2.0	5.0	`AV:N/AC:L/Au:N/C:N/I:N/A:P`
GitHub	3.0	7.5	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Affected packages

Ecosystem	Package	Affected	Fixed in
maven	`org.apache.tomcat:tomcat`	>=9.0.0.M1, <9.0.0.M12 >=8.5.0, <8.5.8	9.0.0.M12 8.5.8

Affected products

Apache Software Foundation Apache Tomcat

Classification

Weakness

CWE-835 Loop with Unreachable Exit Condition
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

securitytracker.com /id/1037330 · vdb-entry, x_refsource_SECTRACK, x_transferred
lists.apache.org /thread.html/a9f24571460af003071475b75f18cad81ebcc36fa7c876965a75e32a%40%3Cannounce.tomcat · mailing-list, x_refsource_MLIST, x_transferred
security.netapp.com /advisory/ntap-20180607-0001/ · x_refsource_CONFIRM, x_transferred
securityfocus.com /bid/94462 · vdb-entry, x_refsource_BID, x_transferred
lists.apache.org /thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apac · mailing-list, x_refsource_MLIST, x_transferred
lists.apache.org /thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apac · mailing-list, x_refsource_MLIST, x_transferred
lists.apache.org /thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apac · mailing-list, x_refsource_MLIST, x_transferred
lists.apache.org /thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apac · mailing-list, x_refsource_MLIST, x_transferred
nvd.nist.gov /vuln/detail/CVE-2016-6817 · advisory
github.com /apache/tomcat/commit/079372fc7bac8e2e378942715c9ce26a4a72c07a · web
github.com /apache/tomcat/commit/85c63227edabbfb4f2f500fc557480a190135d21 · web
web.archive.org /web/20200227174145/http://www.securityfocus.com/bid/94462 · web
web.archive.org /web/20180115024458/http://www.securitytracker.com/id/1037330 · web
security.netapp.com /advisory/ntap-20180607-0001 · web
lists.apache.org /thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc@%3Cdev.tomcat.apache · web
lists.apache.org /thread.html/a9f24571460af003071475b75f18cad81ebcc36fa7c876965a75e32a@%3Cannounce.tomcat.a · web
lists.apache.org /thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a@%3Cdev.tomcat.apache · web
lists.apache.org /thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3@%3Cdev.tomcat.apache · web
lists.apache.org /thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache · web
github.com /apache/tomcat · package

Sources

CVE List: CVE-2016-6817
GitHub Advisory: GHSA-698c-2x4j-g9gq
NVD: CVE-2016-6817

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary