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Fencer Intel
high 7.8

CVE-2007-1718 json

CRLF injection vulnerability in the mail function in PHP 4.0.0 through 4.4.6 and 5.0.0 through 5.2.1 allows remote attackers to inject arbi…

published 19y ago modified 4mo ago also EUVD-2007-1712

cvss
7.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.9%
EPSS 6.9% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

CRLF injection vulnerability in the mail function in PHP 4.0.0 through 4.4.6 and 5.0.0 through 5.2.1 allows remote attackers to inject arbitrary e-mail headers and possibly conduct spam attacks via a control character immediately following folding of the (1) Subject or (2) To parameter, as demonstrated by a parameter containing a "\r\n\t\n" sequence, related to an increment bug in the SKIP_LONG_HEADER_SEP macro.

Patch / fix

  • php RHEL 1 APPLICATION_STACK 5.1.6-3.el4s1.6
  • php-gd RHEL 1 APPLICATION_STACK 5.1.6-3.el4s1.6
  • php-cli RHEL 1 APPLICATION_STACK 5.1.6-3.el4s1.6
  • php-dba RHEL 1 APPLICATION_STACK 5.1.6-3.el4s1.6
  • php-pdo RHEL 1 APPLICATION_STACK 5.1.6-3.el4s1.6
  • php-xml RHEL 1 APPLICATION_STACK 5.1.6-3.el4s1.6
  • php-imap RHEL 1 APPLICATION_STACK 5.1.6-3.el4s1.6
  • php-ldap RHEL 1 APPLICATION_STACK 5.1.6-3.el4s1.6

red hat advisories RHSA-2007:0162RHSA-2007:0155RHSA-2007:0153

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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-2007-1718 updated

security flaw

  • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) php 5.1.6-3.el4s1.6, php-gd 5.1.6-3.el4s1.6, php-cli 5.1.6-3.el4s1.6, php-dba 5.1.6-3.el4s1.6, php-pdo 5.1.6-3.el4s1.6, php-xml 5.1.6-3.el4s1.6, +12 more Red Hat Application Stack v1 for Enterprise Linux ES (v.4) php 5.1.6-3.el4s1.6, php-gd 5.1.6-3.el4s1.6, php-cli 5.1.6-3.el4s1.6, php-dba 5.1.6-3.el4s1.6, php-pdo 5.1.6-3.el4s1.6, php-xml 5.1.6-3.el4s1.6, +12 more
    fixed: vendor fix RHSA-2007:0162
  • Red Hat Desktop version 3 php 4.3.2-40.ent, php-imap 4.3.2-40.ent, php-ldap 4.3.2-40.ent, php-odbc 4.3.2-40.ent, php-mysql 4.3.2-40.ent, php-pgsql 4.3.2-40.ent
    fixed: vendor fix RHSA-2007:0155
  • Red Hat Enterprise Linux (v. 5 server) php 5.1.6-11.el5, php-gd 5.1.6-11.el5, php-cli 5.1.6-11.el5, php-dba 5.1.6-11.el5, php-pdo 5.1.6-11.el5, php-xml 5.1.6-11.el5, +12 more
    fixed: vendor fix RHSA-2007:0153
  • Red Hat Enterprise Linux AS version 3 php 4.3.2-40.ent, php-imap 4.3.2-40.ent, php-ldap 4.3.2-40.ent, php-odbc 4.3.2-40.ent, php-mysql 4.3.2-40.ent, php-pgsql 4.3.2-40.ent Red Hat Enterprise Linux AS version 4 php 4.3.9-3.22.4, php-gd 4.3.9-3.22.4, php-imap 4.3.9-3.22.4, php-ldap 4.3.9-3.22.4, php-odbc 4.3.9-3.22.4, php-pear 4.3.9-3.22.4, +7 more Red Hat Enterprise Linux Desktop version 4 php 4.3.9-3.22.4, php-gd 4.3.9-3.22.4, php-imap 4.3.9-3.22.4, php-ldap 4.3.9-3.22.4, php-odbc 4.3.9-3.22.4, php-pear 4.3.9-3.22.4, +7 more
    fixed: vendor fix RHSA-2007:0155
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) php 5.1.6-11.el5, php-gd 5.1.6-11.el5, php-cli 5.1.6-11.el5, php-dba 5.1.6-11.el5, php-pdo 5.1.6-11.el5, php-xml 5.1.6-11.el5, +12 more
    fixed: vendor fix RHSA-2007:0153
  • Red Hat Enterprise Linux ES version 3 php 4.3.2-40.ent, php-imap 4.3.2-40.ent, php-ldap 4.3.2-40.ent, php-odbc 4.3.2-40.ent, php-mysql 4.3.2-40.ent, php-pgsql 4.3.2-40.ent Red Hat Enterprise Linux ES version 4 php 4.3.9-3.22.4, php-gd 4.3.9-3.22.4, php-imap 4.3.9-3.22.4, php-ldap 4.3.9-3.22.4, php-odbc 4.3.9-3.22.4, php-pear 4.3.9-3.22.4, +7 more Red Hat Enterprise Linux WS version 3 php 4.3.2-40.ent, php-imap 4.3.2-40.ent, php-ldap 4.3.2-40.ent, php-odbc 4.3.2-40.ent, php-mysql 4.3.2-40.ent, php-pgsql 4.3.2-40.ent Red Hat Enterprise Linux WS version 4 php 4.3.9-3.22.4, php-gd 4.3.9-3.22.4, php-imap 4.3.9-3.22.4, php-ldap 4.3.9-3.22.4, php-odbc 4.3.9-3.22.4, php-pear 4.3.9-3.22.4, +7 more
    fixed: vendor fix RHSA-2007:0155

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

Timeline

  1. Published
  2. First public exploit (EDB-29784)

Exploit prediction

6.95% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-14).

Exploits and checks

  • EDB-29784 PHP 5.2.1 - Folded Mail Headers Email Header Injection remote, 2007-11-26
  • securityfocus.com http://www.securityfocus.com/bid/23145 referenced PoC, tagged "exploit" by a source, unverified
  • php-security.org http://www.php-security.org/MOPB/MOPB-34-2007.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:C/A:N

Classification

Technology feeds

References

Sources

Fencer Intel 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.