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Vulnerability record · CVE-2015-3249 · published 30 October 2017

CVE-2015-3249: Apache traffic server memory buffer overflow vulnerability

Apache · Traffic Server

The HTTP/2 experimental feature in Apache Traffic Server 5.3.x before 5.3.1 allows remote attackers to cause a denial of service (out-of-bounds access and daemon crash) or possibly execute arbitrary code via vectors related to the (1) frame_handlers array or (2) set_dynamic_table_size function.

9.8 CVSS 3.0 Critical EPSS 5.4% · top 7.6% CWE-119 · Memory buffer overflow
9.8CVSS 3.0 base score, v2 7.5
5.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

The HTTP/2 experimental feature in Apache Traffic Server 5.3.x before 5.3.1 allows remote attackers to cause a denial of service (out-of-bounds access and daemon crash) or possibly execute arbitrary code via vectors related to the (1) frame_handlers array or (2) set_dynamic_table_size function.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://mail-archives.us.apache.org/mod_mbox/www-announce/201507.mbox/%3CCABF6JR37mWzDmXDqRQwRUXiojBZrhidndnsY1ZgmcZv-o7-
http://www.securityfocus.com/bid/101631 Third Party AdvisoryVDB Entry
https://yahoo-security.tumblr.com/post/122883273670/apache-traffic-server-http2-fuzzing Issue TrackingThird Party Advisory
http://mail-archives.us.apache.org/mod_mbox/www-announce/201507.mbox/%3CCABF6JR37mWzDmXDqRQwRUXiojBZrhidndnsY1ZgmcZv-o7-
http://www.securityfocus.com/bid/101631 Third Party AdvisoryVDB Entry
https://yahoo-security.tumblr.com/post/122883273670/apache-traffic-server-http2-fuzzing Issue TrackingThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2023-44487HTTP/2 Rapid Reset stream cancellation denial of serviceThe HTTP/2 protocol permits a client to cancel many streams quickly, and the server's handling of those resets consumes disproportionate resources. T…KEVEPSS 100%analysed10.0CVE-2014-3525Apache traffic server vulnerabilityUnspecified vulnerability in Apache Traffic Server 3.x through 3.2.5, 4.x before 4.2.1.1, and 5.x before 5.0.1 has unknown impact and attack vectors,…EPSS 4.5%9.8CVE-2021-43082Apache traffic server classic buffer overflow vulnerabilityBuffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the stats-over-http plugin of Apache Traffic Server allows an…EPSS 2.4%9.8CVE-2021-35474Apache traffic server stack-based buffer overflow vulnerabilityStack-based Buffer Overflow vulnerability in cachekey plugin of Apache Traffic Server. This issue affects Apache Traffic Server 7.0.0 to 7.1.12, 8.0.…EPSS 2.7%9.8CVE-2019-17559Apache traffic server http request smuggling vulnerabilityThere is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and scheme parsing. Upgr…EPSS 3.2%9.8CVE-2019-17565Apache traffic server http request smuggling vulnerabilityThere is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and chunked encoding. Up…EPSS 3.2%9.8CVE-2020-1944Apache traffic server http request smuggling vulnerabilityThere is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and Transfer-Encoding an…EPSS 2.7%9.8CVE-2014-3624Apache traffic server improper access control vulnerabilityApache Traffic Server 5.1.x before 5.1.1 allows remote attackers to bypass access restrictions by leveraging failure to properly tunnel remap request…EPSS 3.8%

Source: NIST National Vulnerability Database (record CVE-2015-3249), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.