7.5

CVE-2017-15721: debian debian_linux NULL Pointer Dereference

CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2017-15721UBUNTU-CVE-2017-15721DEBIAN-CVE-2017-15721
Published 22-10-2017Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2017-15721 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 2.37% chance of exploitation in the next 30 days, higher than 83.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
2.37%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 7 · Related 4
DLA-1217-1DSA-4016-1MGASA-2017-0393OPENSUSE-SU-2017:2832-1OPENSUSE-SU-2017:2835-1OPENSUSE-SU-2024:10865-1

Timeline

  1. 22-10-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. This is a separate, but similar, issue relative to CVE-2017-9468.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

2.37%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.37% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.37%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Alpine1 product
  • irssi< 1.0.5-r0 | < 1.0.6-r0
Irssi1 product
Ubuntu1 product
  • irssi< 0.8.15-5ubuntu3.3 | < 0.8.19-1ubuntu1.5

4 vendors · 5 products

References

9 links