High severity · published Dec 6, 2017
CVE-2017-17432
OpenAFS 1.x before 1.6.22 does not properly validate Rx ack packets, which allows remote attackers to cause a denial of service (system crash or application crash) via crafted…
7.5
CVSS
3.1%
EPSS
No
On KEV
Description
OpenAFS 1.x before 1.6.22 does not properly validate Rx ack packets, which allows remote attackers to cause a denial of service (system crash or application crash) via crafted fields, as demonstrated by an integer underflow and assertion failure for a small MTU value.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.1% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
OP
Openafs · Openafs
1.0 before 1.6.22 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-17432
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-17432
Issue Tracking
https://bugs.debian.org/883602
lists.debian.org
https://lists.debian.org/debian-lts-announce/2017/12/msg00016.html
Third Party Advisory
https://www.debian.org/security/2017/dsa-4067
Vendor Advisory
https://www.openafs.org/pages/security/OPENAFS-SA-2017-001.txt
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-111497
Out-of-Bounds Write in Google Brotli Decoder