Upstream information

CVE-2018-15836 at MITRE

Description

In verify_signed_hash() in lib/liboswkeys/signatures.c in Openswan before 2.6.50.1, the RSA implementation does not verify the value of padding string during PKCS#1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used. IKEv2 signature verification is affected when RAW RSA keys are used.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 5.6
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector Network Network
Attack Complexity Low High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None Low
Integrity Impact High Low
Availability Impact None Low
CVSSv3 Version 3 3
SUSE Bugzilla entry: 1109972 [RESOLVED / WONTFIX]

No SUSE Security Announcements cross referenced.

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products past their end of life and not receiving proactive updates anymore.
SUSE Linux Enterprise Server 10 SP4-LTSS openswan Unsupported
SUSE Linux Enterprise Server 11 SP1 openswan Unsupported
SUSE Linux Enterprise Server 11 SP1-LTSS openswan Unsupported
SUSE Linux Enterprise Server 11 SP2 openswan Unsupported
SUSE Linux Enterprise Server 11 SP2-LTSS openswan Unsupported

SUSE Timeline for this CVE

CVE page created: Thu Sep 27 01:46:36 2018
CVE page last modified: Tue Jul 2 19:55:49 2024