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Fencer Vulns
medium 5.0

CVE-2007-1863 json

cache_util.c in the mod_cache module in Apache HTTP Server (httpd), when caching is enabled and a threaded Multi-Processing Module (MPM) is…

published 2007-06-27 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-1857

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.8%
EPSS 11.8% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

cache_util.c in the mod_cache module in Apache HTTP Server (httpd), when caching is enabled and a threaded Multi-Processing Module (MPM) is used, allows remote attackers to cause a denial of service (child processing handler crash) via a request with the (1) s-maxage, (2) max-age, (3) min-fresh, or (4) max-stale Cache-Control headers without a value.

Patch / fix

  • apache http_server 2.0.61, 2.2.6
  • apache2 Debian 14, Debian 13, Debian 12 2.2.4-1

debian advisories DEBIAN-CVE-2007-1863

  • ant certificate system 7.3 1.6.5-1jpp_1rh
  • axis certificate system 7.3 1.2.1-1jpp_3rh
  • mx4j certificate system 7.3 1:3.0.1-1jpp_4rh
  • log4j certificate system 7.3 1.2.12-1jpp_1rh
  • tomcat5 certificate system 7.3 5.5.23-0jpp_4rh.16
  • rhpki-ca certificate system 7.3 7.3.0-20.el4
  • pcsc-lite certificate system 7.3 1.3.3-3.el4
  • rhpki-kra certificate system 7.3 7.3.0-14.el4

red hat advisories RHSA-2010:0602RHSA-2007:0557RHSA-2007:0556RHSA-2007:0534RHSA-2007:0533

  • apache2 openSUSE Tumbleweed 2.4.49-1.1

opensuse advisories openSUSE-SU-2024:10623-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-1863 updated

httpd mod_cache segfault

  • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) httpd 2.0.59-1.el4s1.7, mod_ssl 2.0.59-1.el4s1.7, httpd-manual 2.0.59-1.el4s1.7 Red Hat Application Stack v1 for Enterprise Linux ES (v.4) httpd 2.0.59-1.el4s1.7, mod_ssl 2.0.59-1.el4s1.7, httpd-manual 2.0.59-1.el4s1.7
    fixed: vendor fix RHSA-2007:0557
  • Red Hat Certificate System 7.3 for 4AS ant 1.6.5-1jpp_1rh, axis 1.2.1-1jpp_3rh, mx4j 3.0.1-1jpp_4rh, log4j 1.2.12-1jpp_1rh, pcsc-lite 1.3.3-3.el4, rhpki-ca 7.3.0-20.el4, +31 more Red Hat Certificate System 7.3 for 4ES ant 1.6.5-1jpp_1rh, axis 1.2.1-1jpp_3rh, mx4j 3.0.1-1jpp_4rh, log4j 1.2.12-1jpp_1rh, pcsc-lite 1.3.3-3.el4, rhpki-ca 7.3.0-20.el4, +31 more
    fixed: vendor fix RHSA-2010:0602
  • Red Hat Desktop version 3 httpd 2.0.46-67.ent, mod_ssl 2.0.46-67.ent
    fixed: vendor fix RHSA-2007:0533
  • Red Hat Enterprise Linux (v. 5 server) httpd 2.2.3-7.el5, mod_ssl 2.2.3-7.el5, httpd-manual 2.2.3-7.el5
    fixed: vendor fix RHSA-2007:0556
  • Red Hat Enterprise Linux AS version 3 httpd 2.0.46-67.ent, mod_ssl 2.0.46-67.ent
    fixed: vendor fix RHSA-2007:0533
  • Red Hat Enterprise Linux AS version 4 httpd 2.0.52-32.2.ent, mod_ssl 2.0.52-32.2.ent, httpd-manual 2.0.52-32.2.ent, httpd-suexec 2.0.52-32.2.ent
    fixed: vendor fix RHSA-2007:0534
  • Red Hat Enterprise Linux Desktop (v. 5 client) httpd 2.2.3-7.el5, mod_ssl 2.2.3-7.el5, httpd-manual 2.2.3-7.el5
    fixed: vendor fix RHSA-2007:0556
  • Red Hat Enterprise Linux Desktop version 4 httpd 2.0.52-32.2.ent, mod_ssl 2.0.52-32.2.ent, httpd-manual 2.0.52-32.2.ent, httpd-suexec 2.0.52-32.2.ent
    fixed: vendor fix RHSA-2007:0534
show 5 more
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) httpd 2.2.3-7.el5, mod_ssl 2.2.3-7.el5, httpd-manual 2.2.3-7.el5
    fixed: vendor fix RHSA-2007:0556
  • Red Hat Enterprise Linux ES version 3 httpd 2.0.46-67.ent, mod_ssl 2.0.46-67.ent
    fixed: vendor fix RHSA-2007:0533
  • Red Hat Enterprise Linux ES version 4 httpd 2.0.52-32.2.ent, mod_ssl 2.0.52-32.2.ent, httpd-manual 2.0.52-32.2.ent, httpd-suexec 2.0.52-32.2.ent
    fixed: vendor fix RHSA-2007:0534
  • Red Hat Enterprise Linux WS version 3 httpd 2.0.46-67.ent, mod_ssl 2.0.46-67.ent
    fixed: vendor fix RHSA-2007:0533
  • Red Hat Enterprise Linux WS version 4 httpd 2.0.52-32.2.ent, mod_ssl 2.0.52-32.2.ent, httpd-manual 2.0.52-32.2.ent, httpd-suexec 2.0.52-32.2.ent
    fixed: vendor fix RHSA-2007:0534

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

11.79% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.