freerdp: Fix of 2 CVEs
- CVE-2026-67291: fix heap out-of-bounds read in update_process_glyph_fragments; reject a GLYPH_FRAGMENT_ADD update whose one-byte server-declared fragment size exceeds the bytes remaining in the received order buffer, instead of passing it straight to glyph_cache_fragment_put which copies that many bytes - CVE-2026-67288: fix NULL pointer dereference in the smartcard cache handlers; card_id_and_name_a now rejects NULL CardIdentifier/LookupName instead of calling strlen on them, and PCSC_SCardReadCacheA/W skip the cache lookup and initialise data, so a NULL NDR LookupName pointer in SCARD_IOCTL_READCACHEA/W can no longer crash the client
- Products
- freerdp, freerdp-devel, freerdp-libs, libwinpr, libwinpr-devel
- Affected versions
- Not specified
- Fixed versions
- 2.1.1-5.el7_9.tuxcare.els27
- CVEs
- CVE-2026-67288, CVE-2026-67291
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:53 UTC · Revision 1
Source evidence
- CVE-2026-67291: fix heap out-of-bounds read in update_process_glyph_fragments; reject a GLYPH_FRAGMENT_ADD update whose one-byte server-declared fragment size exceeds the bytes remaining in the received order buffer, instead of passing it straight to glyph_cache_fragment_put which copies that many bytes - CVE-2026-67288: fix NULL pointer dereference in the smartcard cache handlers; card_id_and_name_a now rejects NULL CardIdentifier/LookupName instead of calling strlen on them, and PCSC_SCardReadCacheA/W skip the cache lookup and initialise data, so a NULL NDR LookupName pointer in SCARD_IOCTL_READCACHEA/W can no longer crash the client
osv:CLSA-2026-1789401857
freerdp
Fixed versions: 2.1.1-5.el7_9.tuxcare.els27
freerdp-devel
Fixed versions: 2.1.1-5.el7_9.tuxcare.els27
freerdp-libs
Fixed versions: 2.1.1-5.el7_9.tuxcare.els27
libwinpr
Fixed versions: 2.1.1-5.el7_9.tuxcare.els27
libwinpr-devel
Fixed versions: 2.1.1-5.el7_9.tuxcare.els27
Complete source record
{
"id": "519e812796da285e35dfb074bb53f39bcc9d0e4a1406a750362c459318775be1",
"url": "https://osv.dev/vulnerability/CLSA-2026-1789401857",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "freerdp: Fix of 2 CVEs",
"summary": "- CVE-2026-67291: fix heap out-of-bounds read in update_process_glyph_fragments; reject a GLYPH_FRAGMENT_ADD update whose one-byte server-declared fragment size exceeds the bytes remaining in the received order buffer, instead of passing it straight to glyph_cache_fragment_put which copies that many bytes - CVE-2026-67288: fix NULL pointer dereference in the smartcard cache handlers; card_id_and_name_a now rejects NULL CardIdentifier/LookupName instead of calling strlen on them, and PCSC_SCardReadCacheA/W skip the cache lookup and initialise data, so a NULL NDR LookupName pointer in SCARD_IOCTL_READCACHEA/W can no longer crash the client",
"evidence": "osv:CLSA-2026-1789401857",
"products": [
{
"name": {
"value": "freerdp",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.el7_9.tuxcare.els27",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "freerdp-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.el7_9.tuxcare.els27",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "freerdp-libs",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.el7_9.tuxcare.els27",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libwinpr",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.el7_9.tuxcare.els27",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libwinpr-devel",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.1.1-5.el7_9.tuxcare.els27",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1789401857",
"aliases": [
"CLSA-2026-1789401857"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.el7_9.tuxcare.els27"
}
]
}
],
"package": {
"name": "freerdp",
"purl": "pkg:rpm/tuxcare/freerdp?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1789401857.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.el7_9.tuxcare.els27"
}
]
}
],
"package": {
"name": "freerdp-devel",
"purl": "pkg:rpm/tuxcare/freerdp-devel?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1789401857.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.el7_9.tuxcare.els27"
}
]
}
],
"package": {
"name": "freerdp-libs",
"purl": "pkg:rpm/tuxcare/freerdp-libs?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1789401857.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.el7_9.tuxcare.els27"
}
]
}
],
"package": {
"name": "libwinpr",
"purl": "pkg:rpm/tuxcare/libwinpr?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1789401857.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.1-5.el7_9.tuxcare.els27"
}
]
}
],
"package": {
"name": "libwinpr-devel",
"purl": "pkg:rpm/tuxcare/libwinpr-devel?distro=oraclelinux-7",
"ecosystem": "TuxCare:OracleLinux:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/oraclelinux7els/CLSA-2026-1789401857.json"
}
}
],
"modified": "2026-10-26T09:43:39.721174375Z",
"provider": "osv",
"upstream": [
"CVE-2026-67288",
"CVE-2026-67291"
],
"references": [
"https://errata.tuxcare.com/els_os/oraclelinux7els/CLSA-2026-1789401857.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-67288",
"https://nvd.nist.gov/vuln/detail/CVE-2026-67291"
]
},
"related_cves": [
{
"value": "CVE-2026-67288",
"evidence": "/upstream"
},
{
"value": "CVE-2026-67291",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 450059,
"published_at": "2026-09-14T16:04:31+00:00"
}