Vulnerability Details : CVE-2017-15721
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2017-15721
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:irssi:irssi:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-15721
0.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 65 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-15721
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-15721
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-15721
-
http://openwall.com/lists/oss-security/2017/10/22/4
oss-security - Irssi 1.0.5: CVE-2017-15228, CVE-2017-15227, CVE-2017-15721, CVE-2017-15722, CVE-2017-15723Mailing List;Mitigation;Patch;Third Party Advisory
-
https://irssi.org/security/irssi_sa_2017_10.txt
Mitigation;Patch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2017/12/msg00022.html
[SECURITY] [DLA 1217-1] irssi security updateMailing List;Third Party Advisory
-
https://www.debian.org/security/2017/dsa-4016
Debian -- Security Information -- DSA-4016-1 irssiThird Party Advisory
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