netfilter: ipset: add missing range check in bitmap_ip_uadt
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.4%
exploitation probability
0.4%top 68% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
netfilter: ipset: add missing range check in bitmap_ip_uadt
When tb[IPSET_ATTR_IP_TO] is not present but tb[IPSET_ATTR_CIDR] exists,
the values of ip and ip_to are slightly swapped. Therefore, the range check
for ip should be done later, but this part is missing and it seems that the
vulnerability occurs.
So we should add missing range checks and remove unnecessary range checks.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/15794835378ed56fb9bacc6a5dd3b9f33520604ehttps://git.kernel.org/stable/c/2e151b8ca31607d14fddc4ad0f14da0893e1a7c7https://git.kernel.org/stable/c/35f56c554eb1b56b77b3cf197a6b00922d49033dhttps://git.kernel.org/stable/c/3c20b5948f119ae61ee35ad8584d666020c91581https://git.kernel.org/stable/c/591efa494a1cf649f50a35def649c43ae984cd03https://git.kernel.org/stable/c/78b0f2028f1043227a8eb0c41944027fc6a04596https://git.kernel.org/stable/c/7ffef5e5d5eeecd9687204a5ec2d863752aafb7ehttps://git.kernel.org/stable/c/856023ef032d824309abd5c747241dffa33aae8chttps://git.kernel.org/stable/c/e67471437ae9083fa73fa67eee1573fec1b7c8cfhttps://lists.debian.org/debian-lts-announce/2025/03/msg00001.htmlhttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html