MGASA-2021-0307

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Source
https://advisories.mageia.org/MGASA-2021-0307.html
Import Source
https://advisories.mageia.org/MGASA-2021-0307.json
JSON Data
https://api.osv.dev/v1/vulns/MGASA-2021-0307
Related
Published
2021-06-30T23:58:41Z
Modified
2021-06-30T22:39:43Z
Summary
Updated dhcp packages fix a security vulnerability
Details

A flaw was found in the Dynamic Host Configuration Protocol (DHCP). There is a discrepancy between the code that handles encapsulated option information inleases transmitted "on the wire" and the code which reads and parses lease information after it has been written to disk storage. This flaw allows an attacker to deliberately cause a situation where dhcpd while running in DHCPv4 or DHCPv6 mode, or the dhclient attempts to read a stored lease that contains option information, to trigger a stack-based buffer overflow in the option parsing code for colon-separated hex digits values. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability (CVE-2021-25217).

References
Credits

Affected packages

Mageia:7 / dhcp

Package

Name
dhcp
Purl
pkg:rpm/mageia/dhcp?distro=mageia-7

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.4.1-3.1.mga7

Ecosystem specific 

{
    "section": "core"
}

Mageia:8 / dhcp

Package

Name
dhcp
Purl
pkg:rpm/mageia/dhcp?distro=mageia-8

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.4.2-10.1.mga8

Ecosystem specific 

{
    "section": "core"
}