Out-of-bounds Read in Apache Http_server
CVE-2017-7668
The HTTP strict parsing changes added in Apache httpd 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers…
EPSS: 0.648 (98.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Apache Http_server — versions 2.2.32, 2.4.24, 2.4.25
- Apache Software Foundation Http Server — versions 2.4.24, 2.4.25, 2.2.32
- Apple Mac_os_x — versions 10.11.6, 10.12.6
- Netapp Clustered_data_ontap
- Netapp Oncommand_unified_manager
- Netapp Storagegrid
- Oracle Secure_global_desktop — versions 5.3
- Debian Debian_linux — versions 8.0, 9.0
- Redhat Enterprise_linux_desktop — versions 7.0
- Redhat Enterprise_linux_eus — versions 7.2, 7.3, 7.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
Frequently asked questions
- What is CVE-2017-7668?
- CVE-2017-7668 is a high-severity vulnerability in Apache Http_server, classified under Buffer Over-read. CVSS score: 7.5/10. Published 2017-06-20.
- How severe is CVE-2017-7668?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-7668 known to be exploited?
- 30 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.