CVE-2017-7679: apache software foundation apache http server Buffer Over-read
Vulnerability summary
CVE-2017-7679 is a critical (CVSS 9.8) Buffer Over-read vulnerability in apache software foundation apache http server. EPSS estimates a 39.34% chance of exploitation in the next 30 days, higher than 98.6% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 5Timeline
- 20-06-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, mod_mime can read one byte past the end of a buffer when sending a malicious Content-Type response header.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
39.34%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
No change 0.00 pp
From 39.34% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploits
Maturity: poc
Weaknesses
CWE · root cause- CWE-126Buffer Over-readThe product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
Affected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- apache2< 2.4.26-r0
Apache1 product
- http_server≥ 2.2.0, < 2.2.33 | ≥ 2.4.0, < 2.4.26
Apache software foundation1 product
- apache http server2.2.0 to 2.2.32 | 2.4.0 to 2.4.25
Debian1 product
- apache2< 2.4.25-4
Ubuntu1 product
- apache2< 2.4.7-1ubuntu4.16 | < 2.4.18-2ubuntu3.3
5 vendors · 5 products
References
47 links- security.netapp.com/advisory/ntap-20180601-0002/X Refsource CONFIRM
Show all 47 references
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlX Refsource CONFIRMPatchThird Party Advisory
- www.tenable.com/security/tns-2019-09X Refsource CONFIRM