ALT-PU-2026-15982-1 — strongswan

BDU:2026-02400

HIGH7.5

Уязвимость плагина EAP-MSCHAPv2 VPN-клиента StrongSwan, позволяющая нарушителю выполнить произвольный код и вызвать отказ в обслуживании

Published: 2026-03-01Modified: 2026-05-25

CVSS 3.xHIGH 7.5

CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0HIGH 7.8

CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C

References

BDU:2026-05138

LOW3.3

Уязвимость программного обеспечения управления сетевыми соединениями NetworkManager, связанная с неправильным сохранением разрешений, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Published: 2026-04-13Modified: 2026-04-26

CVSS 3.xLOW 3.3

CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS 2.0LOW 1.7

CVSS:2.0/AV:L/AC:L/Au:S/C:P/I:N/A:N

References

CVE-2025-62291

HIGH8.1

In the eap-mschapv2 plugin (client-side) in strongSwan before 6.0.3, a malicious EAP-MSCHAPv2 server can send a crafted message of size 6 through 8, and cause an integer underflow that potentially results in a heap-based buffer overflow.

Published: 2026-01-16Modified: 2026-06-17

CVSS 3.xHIGH 8.1

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

CVE-2025-9615

LOW3.3

A flaw was found in NetworkManager. The NetworkManager package allows access to files that may belong to other users. NetworkManager allows non-root users to configure the system's network. The daemon runs with root privileges and can access files owned by users different from the one who added the connection.

Published: 2026-01-26Modified: 2026-06-30

CVSS 3.xLOW 3.3

CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

CVE-2026-25075

HIGH8.7

strongSwan versions 4.5.0 prior to 6.0.5 contain an integer underflow vulnerability in the EAP-TTLS AVP parser that allows unauthenticated remote attackers to cause a denial of service by sending crafted AVP data with invalid length fields during IKEv2 authentication. Attackers can exploit the failure to validate AVP length fields before subtraction to trigger excessive memory allocation or NULL pointer dereference, crashing the charon IKE daemon.

Published: 2026-03-23Modified: 2026-07-14

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0HIGH 8.7

CVSS:4.0/CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

References

NONE

NONE

NONE

NONE

NONE

NONE

NONE

HIGH7.5

In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that result in an empty but non-NULL encoding are not correctly cloned and trigger a double-free once the duplicates are destroyed.

Published: 2026-08-22Modified: 2026-09-09

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

CVE-2026-78123

MEDIUM5.9

strongSwan 5.0.2 through 6.0.7 has an Expired Pointer Dereference in PKCS#7 parsing in the openssl plugin.

Published: 2026-09-10Modified: 2026-09-15

CVSS 3.xMEDIUM 5.9

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

CVE-2026-78124

LOW3.7

strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime.

Published: 2026-09-10Modified: 2026-09-14

CVSS 3.xLOW 3.7

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References

CVE-2026-78126

MEDIUM5.9

strongSwan 4.1.10 through 6.0.7 allows a NULL pointer dereference in the eap-aka plugin.

Published: 2026-09-10Modified: 2026-09-14

CVSS 3.xMEDIUM 5.9

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

CVE-2026-78127

LOW3.7

libcharon in strongSwan 4.1.2 through 6.0.7 has a missing release of memory after its effective lifetime in the IKE message parser.

Published: 2026-09-10Modified: 2026-09-14

CVSS 3.xLOW 3.7

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References

CVE-2026-78129

MEDIUM5.9

strongSwan 4.6.2 through 6.0.7 has an infinite loop in PKCS#5 decryption.

Published: 2026-09-10Modified: 2026-09-14

CVSS 3.xMEDIUM 5.9

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References

CVE-2026-78130

HIGH7.5

strongSwan 4.2.0 through 6.0.7 has a NULL pointer dereference in the x509 plugin's attribute certificate parser.

Published: 2026-09-10Modified: 2026-09-15

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

CVE-2026-78131

LOW3.7

strongSwan 4.2.0 through 6.0.7 has a missing release of memory after its effective lifetime in the x509 plugin's attribute certificate parser.

Published: 2026-09-10Modified: 2026-09-14

CVSS 3.xLOW 3.7

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References

CVE-2026-78132

HIGH7.5

strongSwan 5.1.3 through 6.0.7 has an infinite loop in the x509 plugin's attribute certificate parser for ietfAttrSyntax.

Published: 2026-09-10Modified: 2026-09-14

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

CVE-2026-78133

HIGH7.5

libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.

Published: 2026-09-10Modified: 2026-09-14

CVSS 3.xHIGH 7.5

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

CVE-2026-78134

HIGH7.1

strongSwan 4.5.0 through 6.0.7 has Incorrect Access Control in the eap-ttls and eap-peap plugins because there can be a missing or mismatched inner EAP identity.

Published: 2026-09-10Modified: 2026-09-14

CVSS 3.xHIGH 7.1

CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

References

CVE-2026-78135

HIGH7.3

libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because CREATE_CHILD_SA requests are mishandled, there can be an authentication bypass.

Published: 2026-09-11Modified: 2026-09-16

CVSS 3.xHIGH 7.3

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

Package update strongswan in branch p11_loongarch64

Closed issues (24)

Уязвимость плагина EAP-MSCHAPv2 VPN-клиента StrongSwan, позволяющая нарушителю выполнить произвольный код и вызвать отказ в обслуживании

In the eap-mschapv2 plugin (client-side) in strongSwan before 6.0.3, a malicious EAP-MSCHAPv2 server can send a crafted message of size 6 through 8, and cause an integer underflow that potentially results in a heap-based buffer overflow.

In strongSwan before 6.0.7, identity parsing/cloning is mishandled. Parsed EAP-Identities that result in an empty but non-NULL encoding are not correctly cloned and trigger a double-free once the duplicates are destroyed.

strongSwan 5.0.2 through 6.0.7 has an Expired Pointer Dereference in PKCS#7 parsing in the openssl plugin.

strongSwan 5.0.2 through 6.0.7 allows PKCS#7 certificate enumeration in the openssl plugin that leads to a lack of release of memory after its effective lifetime.

strongSwan 4.1.10 through 6.0.7 allows a NULL pointer dereference in the eap-aka plugin.

libcharon in strongSwan 4.1.2 through 6.0.7 has a missing release of memory after its effective lifetime in the IKE message parser.

strongSwan 4.6.2 through 6.0.7 has an infinite loop in PKCS#5 decryption.

strongSwan 4.2.0 through 6.0.7 has a NULL pointer dereference in the x509 plugin's attribute certificate parser.

strongSwan 4.2.0 through 6.0.7 has a missing release of memory after its effective lifetime in the x509 plugin's attribute certificate parser.

strongSwan 5.1.3 through 6.0.7 has an infinite loop in the x509 plugin's attribute certificate parser for ietfAttrSyntax.

libcharon in strongSwan 6.0.0 through 6.0.7 has a use-after-free in IKEv2 rekeying collision handling.

strongSwan 4.5.0 through 6.0.7 has Incorrect Access Control in the eap-ttls and eap-peap plugins because there can be a missing or mismatched inner EAP identity.

libcharon in strongSwan 5.9.7 through 6.0.7 mishandles behavioral workflow in the IKEv2 state machine. Because CREATE_CHILD_SA requests are mishandled, there can be an authentication bypass.