Perl up to 5.28.0 Perl_my_setenv memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Perl up to 5.28.0. Affected by this issue is the function Perl_my_setenv. This manipulation causes memory corruption. This vulnerability is handled as CVE-2018-18311. It is possible to launch the attack on the local host. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Perl up to 5.28.0 (Programming Language Software) and classified as critical. Affected by this vulnerability is the function Perl_my_setenv. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Perl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.

The bug was discovered 11/29/2018. The weakness was released 11/29/2018 as perldelta - what is new for perl v5.26.3 as confirmed release notes (Website). The advisory is shared at metacpan.org. The public release was coordinated with the project team. This vulnerability is known as CVE-2018-18311 since 10/14/2018. An attack has to be approached locally. A single authentication is required for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 120189 (SUSE SLED15 / SLES15 Security Update : perl (SUSE-SU-2018:4187-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176537 (Debian Security Update for perl (DSA 4347-1)).

Upgrading to version 5.28.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (120189), SecurityFocus (BID 106145†) and SecurityTracker (ID 1042181†). Entries connected to this vulnerability are available at VDB-127382, VDB-127383, VDB-127384 and VDB-132369. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 120189
Nessus Name: SUSE SLED15 / SLES15 Security Update : perl (SUSE-SU-2018:4187-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Perl 5.28.1
Patch: github.com

Timelineinfo

10/14/2018 🔍
11/29/2018 +46 days 🔍
11/29/2018 +0 days 🔍
11/29/2018 +0 days 🔍
11/29/2018 +0 days 🔍
11/29/2018 +0 days 🔍
12/03/2018 +4 days 🔍
12/07/2018 +4 days 🔍
01/02/2019 +26 days 🔍
06/12/2023 +1622 days 🔍

Sourcesinfo

Advisory: perldelta - what is new for perl v5.26.3
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2018-18311 (🔍)
GCVE (CVE): GCVE-0-2018-18311
GCVE (VulDB): GCVE-100-127381

OVAL: 🔍

SecurityFocus: 106145 - Perl Multiple Buffer Overflow Vulnerabilities
SecurityTracker: 1042181

See also: 🔍

Entryinfo

Created: 12/03/2018 09:09
Updated: 06/12/2023 14:06
Changes: 12/03/2018 09:09 (81), 04/16/2020 17:09 (5), 06/12/2023 14:06 (4)
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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