CVE-2018-6797
perl: heap write overflow in regcomp.c
Severity Score
9.8
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes written.
Se ha descubierto un problema en Perl 5.26. Una expresión regular manipulada puede provocar un desbordamiento de búfer basado en memoria dinámica (heap), con control sobre los bytes que se escriben.
A heap buffer write overflow, with control over the bytes written, was found in the way regular expressions employing Unicode rules are compiled. An attacker, with the ability to provide a specially crafted regular expression, could crash the perl interpreter, or possibly execute arbitrary code.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2018-02-06 CVE Reserved
- 2018-04-16 CVE Published
- 2024-01-31 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-787: Out-of-bounds Write
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| http://www.securitytracker.com/id/1040681 | Third Party Advisory | |
| http://www.securitytracker.com/id/1042004 | Third Party Advisory | |
| https://www.oracle.com/security-alerts/cpujul2020.html | X_refsource_misc |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://rt.perl.org/Public/Bug/Display.html?id=132227 | 2020-08-24 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2018:1192 | 2020-08-24 | |
| https://security.gentoo.org/glsa/201909-01 | 2020-08-24 | |
| https://usn.ubuntu.com/3625-1 | 2020-08-24 | |
| https://www.debian.org/security/2018/dsa-4172 | 2020-08-24 | |
| https://access.redhat.com/security/cve/CVE-2018-6797 | 2018-04-23 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1547783 | 2018-04-23 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Perl Search vendor "Perl" | Perl Search vendor "Perl" for product "Perl" | >= 5.18 <= 5.26 Search vendor "Perl" for product "Perl" and version " >= 5.18 <= 5.26" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 17.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "17.10" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 7.3 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.3" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 7.4 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.4" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 7.5 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.5" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 7.6 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.6" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation" | 6.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "6.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0" | - |
Affected
| ||||||