pcre: stack overflow caused by mishandled group empty match (8.38/11)
Published Dec 13, 2016
7.5
HIGHCVSS 3.0
EPSS 6.17%
Description
PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.
Affected products
No data.
Configuration 2
No data.
Red Hat Enterprise Linux 7
pcre-0:8.32-15.el7_2.1
Fixed · RHSA-2016:1025
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-mariadb100-mariadb-1:10.0.25-4.el6
Fixed · RHSA-2016:1132
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-0:2.3-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-php-0:5.6.25-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6
rh-php56-php-pear-1:1.9.5-4.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS
rh-mariadb100-mariadb-1:10.0.25-4.el6
Fixed · RHSA-2016:1132
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-mariadb100-mariadb-1:10.0.25-4.el6
Fixed · RHSA-2016:1132
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-0:2.3-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-php-0:5.6.25-1.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
rh-php56-php-pear-1:1.9.5-4.el6
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-mariadb100-mariadb-1:10.0.25-4.el7
Fixed · RHSA-2016:1132
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS
rh-mariadb100-mariadb-1:10.0.25-4.el7
Fixed · RHSA-2016:1132
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-mariadb100-mariadb-1:10.0.25-4.el7
Fixed · RHSA-2016:1132
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-0:2.3-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-php-0:5.6.25-1.el7
Fixed · RHSA-2016:2750
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
rh-php56-php-pear-1:1.9.5-4.el7
Fixed · RHSA-2016:2750
Red Hat Directory Server 8
pcre
Not affected
Red Hat Enterprise Linux 5
pcre
Not affected
Red Hat Enterprise Linux 6
glib2
Will not fix
Red Hat Enterprise Linux 6
pcre
Will not fix
Red Hat Enterprise Linux 7
glib2
Will not fix
Red Hat Enterprise Linux 7
virtuoso-opensource
Will not fix
Red Hat JBoss Enterprise Web Server 1
httpd
Not affected
Red Hat JBoss Enterprise Web Server 2
httpd
Not affected
Red Hat JBoss Enterprise Web Server 3
pcre
Will not fix
Red Hat Software Collections
php54-php
Will not fix
Red Hat Software Collections
php55-php
Will not fix
Red Hat Software Collections
rh-mariadb101-mariadb
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | pcre-0:8.32-15.el7_2.1 | Fixed | RHSA-2016:1025 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-mariadb100-mariadb-1:10.0.25-4.el6 | Fixed | RHSA-2016:1132 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-0:2.3-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-php-0:5.6.25-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | rh-php56-php-pear-1:1.9.5-4.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUS | rh-mariadb100-mariadb-1:10.0.25-4.el6 | Fixed | RHSA-2016:1132 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-mariadb100-mariadb-1:10.0.25-4.el6 | Fixed | RHSA-2016:1132 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-0:2.3-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-php-0:5.6.25-1.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | rh-php56-php-pear-1:1.9.5-4.el6 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-mariadb100-mariadb-1:10.0.25-4.el7 | Fixed | RHSA-2016:1132 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUS | rh-mariadb100-mariadb-1:10.0.25-4.el7 | Fixed | RHSA-2016:1132 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-mariadb100-mariadb-1:10.0.25-4.el7 | Fixed | RHSA-2016:1132 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.2 EUS | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-0:2.3-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-php-0:5.6.25-1.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | rh-php56-php-pear-1:1.9.5-4.el7 | Fixed | RHSA-2016:2750 |
| Red Hat Directory Server 8 | pcre | Not affected | n/a |
| Red Hat Enterprise Linux 5 | pcre | Not affected | n/a |
| Red Hat Enterprise Linux 6 | glib2 | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | pcre | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | glib2 | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | virtuoso-opensource | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 1 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 2 | httpd | Not affected | n/a |
| Red Hat JBoss Enterprise Web Server 3 | pcre | Will not fix | n/a |
| Red Hat Software Collections | php54-php | Will not fix | n/a |
| Red Hat Software Collections | php55-php | Will not fix | n/a |
| Red Hat Software Collections | rh-mariadb101-mariadb | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.17% (0.06169) | 93.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.17% (0.06169) | 92.55th | v5 (v2026.06.15) |
| Dec 1, 2025 | 0.86% (0.00861) | 74.44th | v4 (v2025.03.14) |
| Jun 3, 2025 | 2.89% (0.02892) | 85.72th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.12% (0.01120) | 76.26th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.34% (0.02336) | 74.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.12% (0.01120) | 76.72th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.41% (0.01411) | 87.02th | v3 (v2023.03.01) |
| Mar 15, 2024 | 1.41% (0.01411) | 86.14th | v3 (v2023.03.01) |
| Dec 26, 2023 | 1.25% (0.01249) | 83.99th | v3 (v2023.03.01) |
| Nov 16, 2023 | 0.87% (0.00870) | 80.49th | v3 (v2023.03.01) |
| Oct 4, 2023 | 0.82% (0.00817) | 79.85th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.73% (0.00730) | 77.75th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
References (13)
- http://rhn.redhat.com/errata/RHSA-2016-1025.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2016-2750.html vendor-advisoryx_refsource_REDHAT
- http://vcs.pcre.org/pcre?view=revision&revision=1566 x_refsource_CONFIRMPatch
- http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886 x_refsource_CONFIRMThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/06/03/7 mailing-listx_refsource_MLISTMailing List
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html x_refsource_CONFIRM
- http://www.securityfocus.com/bid/75018 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2016:1132 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2015-3217 Vendor Advisory
- https://bugs.exim.org/show_bug.cgi?id=1638 x_refsource_CONFIRMExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1228283 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-3217
- https://www.cve.org/CVERecord?id=CVE-2015-3217
Change history (0)
No recorded changes yet.