Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested…
Priority MEDIUM 49CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- Partial Red Hat: 28 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
Perl before 5.30.3 on 32-bit platforms allows a heap-based buffer overflow because nested regular expression quantifiers have an integer overflow.
Why it matters now
EPSS 0.11334 96th percentileScored 2026-11-07
Fix Partial Red Hat: 7 advisoriesRed Hat: 28 fixed, 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 22
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:perl:perl:*:*:*:*:*:*:x86:* | before 5.30.3 | Vulnerable | Perl |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | openSUSE |
| cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.2.0:*:*:*:*:*:*:* | 12.0.0.2.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.3.0:*:*:*:*:*:*:* | 12.0.0.3.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* | 8.0.0 – 8.5.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_eagle_application_processor:*:*:*:*:*:*:*:* | 16.1.0 – 16.4.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:10.1:*:*:*:*:*:*:* | 10.1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:10.2:*:*:*:*:*:*:* | 10.2 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.7:*:*:*:*:*:*:* | 46.7 | Vulnerable | Oracle |
- cpe:2.3:a:perl:perl:*:*:*:*:*:*:x86:* Versions before 5.30.3 Vulnerable ·Perl
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
- cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.2.0:*:*:*:*:*:*:* Versions 12.0.0.2.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_billing_and_revenue_management:12.0.0.3.0:*:*:*:*:*:*:* Versions 12.0.0.3.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_diameter_signaling_router:*:*:*:*:*:*:*:* Versions 8.0.0 – 8.5.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_eagle_application_processor:*:*:*:*:*:*:*:* Versions 16.1.0 – 16.4.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:10.1:*:*:*:*:*:*:* Versions 10.1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:10.2:*:*:*:*:*:*:* Versions 10.2 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.7:*:*:*:*:*:*:* Versions 46.7 Vulnerable ·Oracle
Show 12 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.8:*:*:*:*:*:*:* | 46.8 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.9:*:*:*:*:*:*:* | 46.9 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_lsms:*:*:*:*:*:*:*:* | 13.1 – 13.4 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:* | 12.0.0.3.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_performance_intelligence_center:*:*:*:*:*:*:*:* | 10.3.0.0.0 – 10.3.0.2.1; 10.4.0.1.0 – 10.4.0.3.1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:* | 12.0.0.3.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:configuration_manager:12.1.2.0.8:*:*:*:*:*:*:* | 12.1.2.0.8 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:* | 13.4.0.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:sd-wan_edge:8.2:*:*:*:*:*:*:* | 8.2 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:sd-wan_edge:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:sd-wan_edge:9.1:*:*:*:*:*:*:* | 9.1 | Vulnerable | Oracle |
| cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:* | 7.4.0 – 7.7.1 | Vulnerable | Oracle |
- cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.8:*:*:*:*:*:*:* Versions 46.8 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_eagle_lnp_application_processor:46.9:*:*:*:*:*:*:* Versions 46.9 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_lsms:*:*:*:*:*:*:*:* Versions 13.1 – 13.4 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_offline_mediation_controller:12.0.0.3.0:*:*:*:*:*:*:* Versions 12.0.0.3.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_performance_intelligence_center:*:*:*:*:*:*:*:* Versions 10.3.0.0.0 – 10.3.0.2.1; 10.4.0.1.0 – 10.4.0.3.1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:* Versions 12.0.0.3.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:configuration_manager:12.1.2.0.8:*:*:*:*:*:*:* Versions 12.1.2.0.8 Vulnerable ·Oracle
- cpe:2.3:a:oracle:enterprise_manager_base_platform:13.4.0.0:*:*:*:*:*:*:* Versions 13.4.0.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:sd-wan_edge:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Oracle
- cpe:2.3:a:oracle:sd-wan_edge:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Oracle
- cpe:2.3:a:oracle:sd-wan_edge:9.1:*:*:*:*:*:*:* Versions 9.1 Vulnerable ·Oracle
- cpe:2.3:a:oracle:tekelec_platform_distribution:*:*:*:*:*:*:*:* Versions 7.4.0 – 7.7.1 Vulnerable ·Oracle
Remediation
Red Hat 7 advisories
- RHSA-2026:6206 Released 2026-03-30 · Red Hat rating ModerateRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images perl-5.42.2-524.hum1@aarch64, perl-5.42.2-524.hum1@src, perl-5.42.2-524.hum1@x86_64 +47
- RHSA-2021:2792 Released 2021-07-20 · Red Hat rating Moderateperl security and bug fix update
- Red Hat Enterprise Linux AppStream EUS (v. 8.2) perl-4:5.26.3-418.el8_2.1, perl-Attribute-Handlers-0.99-418.el8_2.1, perl-Devel-Peek-1.26-418.el8_2.1 +16
- Red Hat Enterprise Linux BaseOS EUS (v. 8.2) perl-4:5.26.3-418.el8_2.1, perl-Errno-1.28-418.el8_2.1, perl-IO-1.38-418.el8_2.1 +5
- RHSA-2021:1678 Released 2021-05-18 · Red Hat rating Moderateperl security and bug fix update
- Red Hat Enterprise Linux AppStream (v. 8) perl-4:5.26.3-419.el8, perl-Attribute-Handlers-0.99-419.el8, perl-Devel-Peek-1.26-419.el8 +16
- Red Hat Enterprise Linux BaseOS (v. 8) perl-4:5.26.3-419.el8, perl-Errno-1.28-419.el8, perl-IO-1.38-419.el8 +5
Show 4 more Red Hat advisories
- RHSA-2021:1266 Released 2021-04-20 · Red Hat rating Moderateperl security update
- Red Hat Enterprise Linux Server AUS (v. 7.4) perl-4:5.16.3-292.el7_4.2, perl-CPAN-1.9800-292.el7_4.2, perl-ExtUtils-CBuilder-1:0.28.2.6-292.el7_4.2 +14
- Red Hat Enterprise Linux Server E4S (v. 7.4) perl-4:5.16.3-292.el7_4.2, perl-CPAN-1.9800-292.el7_4.2, perl-ExtUtils-CBuilder-1:0.28.2.6-292.el7_4.2 +14
- Red Hat Enterprise Linux Server Optional AUS (v. 7.4) perl-tests-4:5.16.3-292.el7_4.2
- Red Hat Enterprise Linux Server Optional E4S (v. 7.4) perl-tests-4:5.16.3-292.el7_4.2
- Red Hat Enterprise Linux Server Optional TUS (v. 7.4) perl-tests-4:5.16.3-292.el7_4.2
- Red Hat Enterprise Linux Server TUS (v. 7.4) perl-4:5.16.3-292.el7_4.2, perl-CPAN-1.9800-292.el7_4.2, perl-ExtUtils-CBuilder-1:0.28.2.6-292.el7_4.2 +14
- RHSA-2021:1032 Released 2021-03-30 · Red Hat rating Moderateperl security update
- Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) perl-4:5.16.3-294.el7_7.1, perl-CPAN-1.9800-294.el7_7.1, perl-ExtUtils-CBuilder-1:0.28.2.6-294.el7_7.1 +14
- Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) perl-tests-4:5.16.3-294.el7_7.1
- Red Hat Enterprise Linux Server EUS (v. 7.7) perl-4:5.16.3-294.el7_7.1, perl-CPAN-1.9800-294.el7_7.1, perl-ExtUtils-CBuilder-1:0.28.2.6-294.el7_7.1 +16
- Red Hat Enterprise Linux Server Optional EUS (v. 7.7) perl-tests-4:5.16.3-294.el7_7.1
- RHSA-2021:0883 Released 2021-03-16 · Red Hat rating Moderateperl security update
- Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) perl-4:5.16.3-294.el7_6.1, perl-CPAN-1.9800-294.el7_6.1, perl-ExtUtils-CBuilder-1:0.28.2.6-294.el7_6.1 +14
- Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) perl-tests-4:5.16.3-294.el7_6.1
- Red Hat Enterprise Linux Server EUS (v. 7.6) perl-4:5.16.3-294.el7_6.1, perl-CPAN-1.9800-294.el7_6.1, perl-ExtUtils-CBuilder-1:0.28.2.6-294.el7_6.1 +16
- Red Hat Enterprise Linux Server Optional EUS (v. 7.6) perl-tests-4:5.16.3-294.el7_6.1
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perl-4:5.16.3-294.el7_6.1, perl-CPAN-1.9800-294.el7_6.1, perl-ExtUtils-CBuilder-1:0.28.2.6-294.el7_6.1 +14
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) perl-tests-4:5.16.3-294.el7_6.1
- RHSA-2021:0343 Released 2021-02-02 · Red Hat rating Moderateperl security update
- Red Hat Enterprise Linux Client (v. 7) perl-4:5.16.3-299.el7_9, perl-CPAN-1.9800-299.el7_9, perl-ExtUtils-CBuilder-1:0.28.2.6-299.el7_9 +14
- Red Hat Enterprise Linux Client Optional (v. 7) perl-tests-4:5.16.3-299.el7_9
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) perl-tests-4:5.16.3-299.el7_9
- Red Hat Enterprise Linux Server (v. 7) perl-4:5.16.3-299.el7_9, perl-CPAN-1.9800-299.el7_9, perl-ExtUtils-CBuilder-1:0.28.2.6-299.el7_9 +16
- Red Hat Enterprise Linux Server Optional (v. 7) perl-tests-4:5.16.3-299.el7_9
- Red Hat Enterprise Linux Workstation (v. 7) perl-4:5.16.3-299.el7_9, perl-CPAN-1.9800-299.el7_9, perl-ExtUtils-CBuilder-1:0.28.2.6-299.el7_9 +14
- Red Hat Enterprise Linux Workstation Optional (v. 7) perl-tests-4:5.16.3-299.el7_9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:1678 |
| Red Hat Enterprise Linux AppStream EUS (v. 8.2) | Fixed | RHSA-2021:2792 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2021:1678 |
| Red Hat Enterprise Linux BaseOS EUS (v. 8.2) | Fixed | RHSA-2021:2792 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2021:0343 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2021:0343 |
| Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) | Fixed | RHSA-2021:0883 |
| Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) | Fixed | RHSA-2021:1032 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2021:0343 |
| Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) | Fixed | RHSA-2021:0883 |
| Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) | Fixed | RHSA-2021:1032 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2021:0343 |
| Red Hat Enterprise Linux Server AUS (v. 7.4) | Fixed | RHSA-2021:1266 |
| Red Hat Enterprise Linux Server E4S (v. 7.4) | Fixed | RHSA-2021:1266 |
| Red Hat Enterprise Linux Server EUS (v. 7.6) | Fixed | RHSA-2021:0883 |
| Red Hat Enterprise Linux Server EUS (v. 7.7) | Fixed | RHSA-2021:1032 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2021:0343 |
| Red Hat Enterprise Linux Server Optional AUS (v. 7.4) | Fixed | RHSA-2021:1266 |
| Red Hat Enterprise Linux Server Optional E4S (v. 7.4) | Fixed | RHSA-2021:1266 |
| Red Hat Enterprise Linux Server Optional EUS (v. 7.6) | Fixed | RHSA-2021:0883 |
| Red Hat Enterprise Linux Server Optional EUS (v. 7.7) | Fixed | RHSA-2021:1032 |
| Red Hat Enterprise Linux Server Optional TUS (v. 7.4) | Fixed | RHSA-2021:1266 |
| Red Hat Enterprise Linux Server TUS (v. 7.4) | Fixed | RHSA-2021:1266 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2021:0343 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2021:0343 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) | Fixed | RHSA-2021:0883 |
| Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) | Fixed | RHSA-2021:0883 |
| Red Hat Hardened Images | Fixed | RHSA-2026:6206 |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-10543
References
Patch 8
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://github.com/perl/perl5/commit/897d1f7fd515b828e4b198d8b8bef76c6faf03ed
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
Sources
- CVE-2020-10543 · CVE Program
- CVE-2020-10543 · NVD
- FIRST EPSS
- CVE-2020-10543 · Red Hat security data · CC BY 4.0
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