CVE-2023-47038: Perl: write past buffer end via illegal user-defined unicode property
First published: Mon Nov 13 2023(Updated: )
A crafted regular expression when compiled by perl 5.30.0 through 5.38.0 can cause a one attacker controlled byte buffer overflow in a heap allocated buffer.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| IBM AIX | <=7.3 | |
| IBM VIOS | <=4.1 | |
| All of | ||
| Perl Perl | =5.34.0 | |
| Any of | ||
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| ubuntu/perl | <5.30.0-9ubuntu0.5 | 5.30.0-9ubuntu0.5 |
| ubuntu/perl | <5.34.0-3ubuntu1.3 | 5.34.0-3ubuntu1.3 |
| ubuntu/perl | <5.36.0-7ubuntu0.23.04.2 | 5.36.0-7ubuntu0.23.04.2 |
| ubuntu/perl | <5.36.0-9ubuntu1.1 | 5.36.0-9ubuntu1.1 |
| redhat/perl | <5.32.1 | 5.32.1 |
| debian/perl | <=5.32.1-4+deb11u1 | 5.28.1-6+deb10u1 5.32.1-4+deb11u3 5.36.0-7+deb12u1 5.38.2-4 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2023-47039
- https://security-tracker.debian.org/tracker/CVE-2023-47038
- https://github.com/Perl/perl5/commit/12c313ce49b36160a7ca2e9b07ad5bd92ee4a010
- https://github.com/Perl/perl5/commit/7047915eef37fccd93e7cd985c29fe6be54650b6
- https://github.com/Perl/perl5/commit/92a9eb3d0d52ec7655c1beb29999a5a5219be664
- https://lists.debian.org/debian-project/2023/11/msg00003.html
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056746
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2251622
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2251623
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2251624
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2251625
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2255476
- https://bugzilla.redhat.com/show_bug.cgi?id=2249523
- https://access.redhat.com/security/cve/CVE-2023-47038
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GNEEWAACXQCEEAKSG7XX2D5YDRWLCIZJ/
- https://launchpad.net/bugs/cve/CVE-2023-47038
- https://exchange.xforce.ibmcloud.com/vulnerabilities/272814
- https://www.ibm.com/support/pages/node/7122628 (Advisory)
- https://perldoc.perl.org/perl5382delta#CVE-2023-47038-Write-past-buffer-end-via-illegal-user-defined-Unicode-property
- https://ubuntu.com/security/notices/USN-6517-1
- https://www.cve.org/CVERecord?id=CVE-2023-47038
- https://nvd.nist.gov/vuln/detail/CVE-2023-47038
- https://github.com/Perl/perl5/commit/ff1f9f59360afeebd6f75ca1502f5c3ebf077da3
- https://ubuntu.com/security/CVE-2023-47038
- https://access.redhat.com/errata/RHSA-2024:2228
Frequently Asked Questions
What is CVE-2023-47038?
CVE-2023-47038 is a vulnerability that allows an attacker to cause a buffer overflow in a heap-allocated buffer by using a crafted regular expression in Perl versions 5.30.0 through 5.38.0.
What software is affected by CVE-2023-47038?
Perl versions 5.30.0 through 5.38.0 are affected by CVE-2023-47038.
What is the severity of CVE-2023-47038?
The severity of CVE-2023-47038 is not specified in the provided information.
How can I fix CVE-2023-47038?
To fix CVE-2023-47038, you should update your Perl installation to a version that includes the necessary security patches.
Where can I find more information about CVE-2023-47038?
You can find more information about CVE-2023-47038 on the MITRE CVE website, Ubuntu Security Notices, and NIST National Vulnerability Database.
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