5

CVE-2015-3183: apache http_server DEPRECATED: Code

Modified
AliasesSUSE-SU-2015:1885-1SUSE-SU-2015:1885-2RHSA-2015:1668
Published 20-07-2015Last modified 06-08-2024

Vulnerability summary

CVE-2015-3183 is a medium (CVSS 5.0) DEPRECATED: Code vulnerability in apache http_server. EPSS estimates a 74.39% chance of exploitation in the next 30 days, higher than 99.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 3.7, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
74.39%
0%100%
Critical · +1.06 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 2
DSA-3325-1MGASA-2015-0281RHSA-2015:1666RHSA-2015:1667RHSA-2015:2659RHSA-2015:2660

Timeline

  1. 20-07-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c.

CVSS metrics

2 scores · 2 sources · 2 versions

EPSS trend

Probability

74.39%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

Increase +1.06 pp

From 73.33% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse8 products
  • apache2&distro=SUSE Linux Enterprise Server 11 SP3< 2.2.12-59.1
  • apache2&distro=SUSE Linux Enterprise Server 11 SP3-TERADATA< 2.2.12-59.1
  • apache2&distro=SUSE Linux Enterprise Server 11 SP4< 2.2.12-59.1
  • apache2&distro=SUSE Linux Enterprise Server for SAP Applications 11 SP3< 2.2.12-59.1
  • apache2&distro=SUSE Linux Enterprise Server for SAP Applications 11 SP4< 2.2.12-59.1
Redhat6 products
  • httpd< 0:2.2.15-47.el6_7
  • httpd-debuginfo< 0:2.2.15-47.el6_7
  • httpd-devel< 0:2.2.15-47.el6_7
  • httpd-manual< 0:2.2.15-47.el6_7
  • httpd-tools< 0:2.2.15-47.el6_7
Apache1 product
Debian1 product
  • apache2< 2.4.16-1 | < 2.2.16-6+squeeze15
Ubuntu1 product
  • apache2< 2.4.7-1ubuntu4.5

5 vendors · 17 products

References

72 links
Show all 72 references