DEBIAN-CVE-2026-75883

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Source
https://security-tracker.debian.org/tracker/CVE-2026-75883
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75883.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-75883
Upstream
Published
2026-09-18T16:17:09Z
Modified
2026-09-23T08:47:29Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

The code in pppd that formats a response to a PEAP Request packet in peap_response() copies an entire TLS record of up to 16384 bytes into the fixed global buffer outpacket_buf without checking the available space and without implementing outgoing PEAP fragmentation. Thus a pppd process connecting to a server which requests PEAP authentication can be induced to corrupt global static data following the outpacket_buf array, most likely causing incorrect behavior or a crash.

References

Affected packages

Debian:12 / ppp

Package

Name
ppp
Purl
pkg:deb/debian/ppp?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.4.9-1+1.1
2.5.0-1+1
2.5.0-1+2
2.5.1-1+1~exp1
2.5.1-1+1
2.5.2-1+1~exp1
2.5.2-1+1
2.5.2-1+1.1
2.5.2-1+1.2
2.5.2-1+2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75883.json"

Debian:13 / ppp

Package

Name
ppp
Purl
pkg:deb/debian/ppp?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.2-1+1
2.5.2-1+1.1
2.5.2-1+1.2
2.5.2-1+2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75883.json"

Debian:14 / ppp

Package

Name
ppp
Purl
pkg:deb/debian/ppp?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5.2-1+1
2.5.2-1+1.1
2.5.2-1+1.2
2.5.2-1+2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75883.json"