5

CVE-2015-0205: openssl Cryptographic Issues

Modified
AliasesUBUNTU-CVE-2015-0205DEBIAN-CVE-2015-0205
Published 09-01-2015Last modified 06-08-2024

Vulnerability summary

CVE-2015-0205 is a medium (CVSS 5.0) Cryptographic Issues vulnerability in openssl. EPSS estimates a 22.34% chance of exploitation in the next 30 days, higher than 97.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.0/10
010
Medium · v2.0 (NVD)
EPSS score
22.34%
0%100%
High · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 6
DSA-3125-1MGASA-2015-0022OPENSUSE-SU-2024:10309-1OPENSUSE-SU-2024:11127-1RHSA-2015:0066SUSE-SU-2015:0305-1

Timeline

  1. 09-01-2015
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The ssl3_get_cert_verify function in s3_srvr.c in OpenSSL 1.0.0 before 1.0.0p and 1.0.1 before 1.0.1k accepts client authentication with a Diffie-Hellman (DH) certificate without requiring a CertificateVerify message, which allows remote attackers to obtain access without knowledge of a private key via crafted TLS Handshake Protocol traffic to a server that recognizes a Certification Authority with DH support.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

22.34%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

No change 0.00 pp

From 22.34% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • openssl< 1.0.1k-1
Openssl1 product
  • openssl1.0.0a | 1.0.0b | 1.0.0c | 1.0.0d | 1.0.0e | 1.0.0f | 1.0.0g | 1.0.0h | 1.0.0i | 1.0.0j | 1.0.0k | 1.0.0l | 1.0.0m | 1.0.0n | 1.0.0o | 1.0.1a | 1.0.1b | 1.0.1c | 1.0.1d | 1.0.1e | 1.0.1f | 1.0.1g | 1.0.1h | 1.0.1i | 1.0.1j
Ubuntu1 product
  • openssl< 1.0.1f-1ubuntu2.8

3 vendors · 3 products

References

40 links
Show all 40 references