CVE-2017-6441
** DISPUTED ** The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers...
The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.5
The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.
- Record
CVE-2017-6441- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE List No score
The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.
- Record
CVE-2017-6441- Updated
- 2026-11-02
EUVDEUVD-2017-15498 No score
The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.
- Record
EUVD-2017-15498- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cmfj-hp6v-cm88
7.5
** DISPUTED ** The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers...
** DISPUTED ** The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only."
- Record
GHSA-cmfj-hp6v-cm88- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVBELL-CVE-2017-6441
7.5
CVE-2017-6441 does not affect BellSoft software
- Record
BELL-CVE-2017-6441- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
7.5
The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.
- Record
CVE-2017-6441- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-6441
7.5
The _zval_get_long_func_ex in Zend/zend_operators.c in PHP 7.1.2 allows attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of "declare(ticks=" in a PHP script. NOTE: the vendor disputes the classification of this as a vulnerability, stating "Please do not request CVEs for ordinary bugs. CVEs are relevant for security issues only.
- Record
UBUNTU-CVE-2017-6441- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVSUSE-SU-2017:1717-1 No score
Security update for php7
This update for php7 fixes the following security issues:
- CVE-2017-9224: stack out-of-bounds read occurs in match_at() could lead to Denial of service (bsc#1040891)
- CVE-2017-9226: heap out-of-bounds write orread occurs in next_state_val() could lead to Denial of service(bsc#1040889)
- CVE-2017-9227: stack out-of-bounds read in mbc_enc_len() could lead to Denial of service (bsc#1040883)
- CVE-2017-6441: The _zval_get_long_func_ex in Zend/zend_operators.c in PHP allowed attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of 'declare(ticks=' in a PHP script (bsc#1032155).
- CVE-2016-6294: The locale_accept_from_http function in ext/intl/locale/locale_methods.c did not properly restrict calls to the ICU uloc_acceptLanguageFromHTTP function, which allowed remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long argument (bsc#1035111).
- Record
SUSE-SU-2017:1717-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
php7SUSE:Linux Enterprise Module for Web and Scripting 12 |
before 7.0.7-49.1 | 7.0.7-49.1 |
php7SUSE:Linux Enterprise Software Development Kit 12 SP2 |
before 7.0.7-49.1 | 7.0.7-49.1 |
php5Ubuntu:Pro:14.04:LTS |
All versions, plus listed versions 5.5.3+dfsg-1ubuntu25.5.3+dfsg-1ubuntu35.5.6+dfsg-1ubuntu15.5.6+dfsg-1ubuntu25.5.8+dfsg-2ubuntu1 Show 44 moreShow less5.5.9+dfsg-1ubuntu15.5.9+dfsg-1ubuntu25.5.9+dfsg-1ubuntu35.5.9+dfsg-1ubuntu45.5.9+dfsg-1ubuntu4.15.5.9+dfsg-1ubuntu4.25.5.9+dfsg-1ubuntu4.35.5.9+dfsg-1ubuntu4.45.5.9+dfsg-1ubuntu4.55.5.9+dfsg-1ubuntu4.65.5.9+dfsg-1ubuntu4.75.5.9+dfsg-1ubuntu4.95.5.9+dfsg-1ubuntu4.115.5.9+dfsg-1ubuntu4.125.5.9+dfsg-1ubuntu4.135.5.9+dfsg-1ubuntu4.145.5.9+dfsg-1ubuntu4.165.5.9+dfsg-1ubuntu4.175.5.9+dfsg-1ubuntu4.195.5.9+dfsg-1ubuntu4.205.5.9+dfsg-1ubuntu4.215.5.9+dfsg-1ubuntu4.225.5.9+dfsg-1ubuntu4.235.5.9+dfsg-1ubuntu4.245.5.9+dfsg-1ubuntu4.255.5.9+dfsg-1ubuntu4.265.5.9+dfsg-1ubuntu4.275.5.9+dfsg-1ubuntu4.295.5.9+dfsg-1ubuntu4.29+esm15.5.9+dfsg-1ubuntu4.29+esm25.5.9+dfsg-1ubuntu4.29+esm35.5.9+dfsg-1ubuntu4.29+esm45.5.9+dfsg-1ubuntu4.29+esm55.5.9+dfsg-1ubuntu4.29+esm65.5.9+dfsg-1ubuntu4.29+esm85.5.9+dfsg-1ubuntu4.29+esm105.5.9+dfsg-1ubuntu4.29+esm115.5.9+dfsg-1ubuntu4.29+esm125.5.9+dfsg-1ubuntu4.29+esm135.5.9+dfsg-1ubuntu4.29+esm145.5.9+dfsg-1ubuntu4.29+esm155.5.9+dfsg-1ubuntu4.29+esm165.5.9+dfsg-1ubuntu4.29+esm175.5.9+dfsg-1ubuntu4.29+esm18 |
None known |
php7.0Ubuntu:Pro:16.04:LTS |
All versions, plus listed versions 7.0.1-57.0.1-67.0.2-17.0.2-37.0.2-4 Show 45 moreShow less7.0.2-57.0.3-27.0.3-37.0.3-9ubuntu17.0.4-5ubuntu17.0.4-5ubuntu27.0.4-7ubuntu17.0.4-7ubuntu27.0.4-7ubuntu2.17.0.8-0ubuntu0.16.04.17.0.8-0ubuntu0.16.04.27.0.8-0ubuntu0.16.04.37.0.13-0ubuntu0.16.04.17.0.15-0ubuntu0.16.04.17.0.15-0ubuntu0.16.04.27.0.15-0ubuntu0.16.04.47.0.18-0ubuntu0.16.04.17.0.22-0ubuntu0.16.04.17.0.25-0ubuntu0.16.04.17.0.28-0ubuntu0.16.04.17.0.30-0ubuntu0.16.04.17.0.32-0ubuntu0.16.04.17.0.33-0ubuntu0.16.04.17.0.33-0ubuntu0.16.04.27.0.33-0ubuntu0.16.04.37.0.33-0ubuntu0.16.04.47.0.33-0ubuntu0.16.04.57.0.33-0ubuntu0.16.04.67.0.33-0ubuntu0.16.04.77.0.33-0ubuntu0.16.04.97.0.33-0ubuntu0.16.04.117.0.33-0ubuntu0.16.04.127.0.33-0ubuntu0.16.04.147.0.33-0ubuntu0.16.04.157.0.33-0ubuntu0.16.04.167.0.33-0ubuntu0.16.04.16+esm17.0.33-0ubuntu0.16.04.16+esm27.0.33-0ubuntu0.16.04.16+esm37.0.33-0ubuntu0.16.04.16+esm47.0.33-0ubuntu0.16.04.16+esm57.0.33-0ubuntu0.16.04.16+esm67.0.33-0ubuntu0.16.04.16+esm77.0.33-0ubuntu0.16.04.16+esm87.0.33-0ubuntu0.16.04.16+esm97.0.33-0ubuntu0.16.04.16+esm10 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-6441 is a high vulnerability (CVSS 7.5) in Php, published April 3, 2017. Its validity is disputed. EPSS puts the chance of exploitation in the next 30 days at 1.83%, the 78th percentile. Fixed in php7 7.0.7-49.1.
References
bugs.php.net/bug.php?id=74146
github.com/php/php-src/pull/2396
nvd.nist.gov/vuln/detail/CVE-2017-6441
github.com/advisories/GHSA-cmfj-hp6v-cm88
docs.bell-sw.com/security/cves/CVE-2017-6441
suse.com/support/update/announcement/2017/suse-su-20171717-1
Show 12 moreShow less
bugzilla.suse.com/1032155
bugzilla.suse.com/1035111
bugzilla.suse.com/1040883
bugzilla.suse.com/1040889
bugzilla.suse.com/1040891
suse.com/security/cve/CVE-2016-6294
suse.com/security/cve/CVE-2017-6441
suse.com/security/cve/CVE-2017-9224
suse.com/security/cve/CVE-2017-9226
suse.com/security/cve/CVE-2017-9227
ubuntu.com/security/CVE-2017-6441
cve.org/CVERecord?id=CVE-2017-6441
Left out here: 12 versions. The JSON record has them.