DEBIAN-CVE-2026-75883
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.
DEBIAN-CVE-2026-75883
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-75883
ppp
Source reference: /affected/0/package/name
- Affected versions
- 2.5.2-1+1
Source reference:
/affected/0/versions2.5.2-1+1.1Source reference:
/affected/0/versions2.5.2-1+1.2Source reference:
/affected/0/versions2.5.2-1+2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
ppp
Source reference: /affected/1/package/name
- Affected versions
- 2.5.2-1+1
Source reference:
/affected/1/versions2.5.2-1+1.1Source reference:
/affected/1/versions2.5.2-1+1.2Source reference:
/affected/1/versions2.5.2-1+2Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ppp",
"purl": "pkg:deb/debian/ppp?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.5.2-1+1",
"2.5.2-1+1.1",
"2.5.2-1+1.2",
"2.5.2-1+2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75883.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "ppp",
"purl": "pkg:deb/debian/ppp?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.5.2-1+1",
"2.5.2-1+1.1",
"2.5.2-1+1.2",
"2.5.2-1+2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75883.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]- Related CVEs
- CVE-2026-75883
Source reference:
/upstream
Publisher severity
medium
Source reference: /severity/0/score
- Event
- #84291 · Revision 1
- Added to Heist Feed
- Publisher date