perl: segmentation fault in S_regmatch on negative backreference
Published Aug 16, 2015
7.5
HIGHCVSS 2.0
EPSS 3.04%
Description
Integer underflow in regcomp.c in Perl before 5.20, as used in Apple OS X before 10.10.5 and other products, allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a long digit string associated with an invalid backreference within a regular expression.
Affected products
No data.
No data.
Red Hat Directory Server 8
perl
Will not fix
Red Hat Enterprise Linux 5
perl
Will not fix
Red Hat Enterprise Linux 6
perl
Will not fix
Red Hat Enterprise Linux 7
perl
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Directory Server 8 | perl | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | perl | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | perl | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | perl | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.04% (0.03045) | 87.07th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.04% (0.03045) | 85.78th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.60% (0.00603) | 67.01th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.52% (0.02519) | 75.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.60% (0.00603) | 67.69th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.86% (0.00860) | 83.00th | v3 (v2023.03.01) |
| Nov 16, 2023 | 1.01% (0.01010) | 81.99th | v3 (v2023.03.01) |
| Sep 15, 2023 | 1.36% (0.01364) | 84.67th | v3 (v2023.03.01) |
| Jul 8, 2023 | 1.15% (0.01150) | 82.87th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.09% (0.01094) | 82.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.37% (0.02365) | 81.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.37% (0.02365) | 79.72th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.37% (0.02365) | 58.36th | v2 (v2022.01.01) |
References (10)
- http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html vendor-advisoryx_refsource_APPLEVendor Advisory
- http://perl5.git.perl.org/perl.git/commit/0c2990d652e985784f095bba4bc356481a66aa06 x_refsource_CONFIRM
- http://www.securityfocus.com/bid/75704 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2916-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/security/cve/CVE-2013-7422 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1187149 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-7422
- https://security.gentoo.org/glsa/201507-11 vendor-advisoryx_refsource_GENTOO
- https://support.apple.com/kb/HT205031 x_refsource_CONFIRMVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2013-7422
| Link | Providers | Tags |
|---|---|---|
| http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html | vendor-advisoryx_refsource_APPLEVendor Advisory | |
| http://perl5.git.perl.org/perl.git/commit/0c2990d652e985784f095bba4bc356481a66aa06 | x_refsource_CONFIRM | |
| http://www.securityfocus.com/bid/75704 | vdb-entryx_refsource_BID | |
| http://www.ubuntu.com/usn/USN-2916-1 | vendor-advisoryx_refsource_UBUNTU | |
| https://access.redhat.com/security/cve/CVE-2013-7422 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1187149 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-7422 | ||
| https://security.gentoo.org/glsa/201507-11 | vendor-advisoryx_refsource_GENTOO | |
| https://support.apple.com/kb/HT205031 | x_refsource_CONFIRMVendor Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2013-7422 |
Change history (0)
No recorded changes yet.