Perl up to 5.30.2 Regular Expression integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Perl up to 5.30.2. Affected is an unknown function of the component Regular Expression. The manipulation leads to integer overflow. This vulnerability is documented as CVE-2020-10878. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Perl up to 5.30.2 (Programming Language Software). It has been rated as critical. This issue affects some unknown functionality of the component Regular Expression. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Perl before 5.30.3 has an integer overflow related to mishandling of a "PL_regkind[OP(n)] == NOTHING" situation. A crafted regular expression could lead to malformed bytecode with a possibility of instruction injection.

The weakness was released 06/05/2020 (GitHub Repository). The advisory is shared at github.com. The identification of this vulnerability is CVE-2020-10878 since 03/23/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 236646 (Alibaba Cloud Linux 3 : 0012: perl (ALINUX3-SA-2021:0012)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.30.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236646). Entries connected to this vulnerability are available at VDB-156220 and VDB-156226. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236646
Nessus Name: Alibaba Cloud Linux 3 : 0012: perl (ALINUX3-SA-2021:0012)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Perl 5.30.3

Timelineinfo

03/23/2020 🔍
06/05/2020 +74 days 🔍
06/06/2020 +1 days 🔍
05/18/2025 +1807 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-10878 (🔍)
GCVE (CVE): GCVE-0-2020-10878
GCVE (VulDB): GCVE-100-156221
See also: 🔍

Entryinfo

Created: 06/06/2020 08:58
Updated: 05/18/2025 23:53
Changes: 06/06/2020 08:58 (39), 06/06/2020 09:03 (18), 10/22/2020 16:02 (1), 05/18/2025 23:53 (21)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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