01 Record

CVE-2018-16152

In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the

HighPUBLISHEDCNA: mitre

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

View raw JSON

02 Description

In verify_emsa_pkcs1_signature() in gmp_rsa_public_key.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.89% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 78.1% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2018-09-26 21:00Z7 YR AGO

Last updated

2025-12-03 20:24Z9 MO AGO

Reserved

2018-08-29

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

CWE-347Improper Verification of Cryptographic SignatureBase
CWE-287Improper AuthenticationClass

Data version

5.2

Document digest

a3f07d3372c28e11300fef85959f1c3d6f093e17bd22514aec783bbdfb185c27

05 Affected products

VendorProductVersionsPlatforms

canonicalubuntu_linuxNot specified—

debiandebian_linuxNot specified—

redhatenterprise_linuxNot specified—

strongswanstrongswanNot specified—

06 References

www.debian.orgDSA-4305https://www.debian.org/security/2018/dsa-4305vendor-advisoryx_refsource_DEBIAN
security.gentoo.orgGLSA-201811-16https://security.gentoo.org/glsa/201811-16vendor-advisoryx_refsource_GENTOO
www.strongswan.orghttps://www.strongswan.org/blog/2018/09/24/strongswan-vulnerability-%28cve-2018-16151%2C-cve-2018-16152%29.htmlx_refsource_CONFIRM
lists.debian.org[debian-lts-announce] 20180926 [SECURITY] [DLA 1522-1] strongswan security updatehttps://lists.debian.org/debian-lts-announce/2018/09/msg00032.htmlmailing-listx_refsource_MLIST
usn.ubuntu.comUSN-3771-1https://usn.ubuntu.com/3771-1/vendor-advisoryx_refsource_UBUNTU
lists.opensuse.orgopenSUSE-SU-2019:2594http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.htmlvendor-advisoryx_refsource_SUSE
lists.opensuse.orgopenSUSE-SU-2019:2598http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00001.htmlvendor-advisoryx_refsource_SUSE
lists.opensuse.orgopenSUSE-SU-2020:0403http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.htmlvendor-advisoryx_refsource_SUSE

01 Record index

CVE-2018-16152

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2018-16152

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References