RPM rpmdb lib/header.c hdrblobInit out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability was found in RPM. It has been classified as problematic. This vulnerability affects the function hdrblobInit in the library lib/header.c of the component rpmdb. Performing a manipulation results in out-of-bounds. This vulnerability is known as CVE-2021-20266. No exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in RPM (unknown version). This affects the function hdrblobInit in the library lib/header.c of the component rpmdb. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality.

The weakness was published 04/30/2021. It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2021-20266. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236682 (Alibaba Cloud Linux 3 : 0007: rpm (ALINUX3-SA-2022:0007)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (236682). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236682
Nessus Name: Alibaba Cloud Linux 3 : 0007: rpm (ALINUX3-SA-2022:0007)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
04/30/2021 +133 days 🔍
04/30/2021 +0 days 🔍
05/17/2025 +1478 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2021-20266 (🔍)
GCVE (CVE): GCVE-0-2021-20266
GCVE (VulDB): GCVE-100-174375

Entryinfo

Created: 04/30/2021 17:13
Updated: 05/17/2025 19:34
Changes: 04/30/2021 17:13 (36), 05/07/2021 06:52 (2), 05/17/2025 19:34 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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