CVE-2023-52927 — Use After Free in Linux
Severity
7.8HIGHNVD
OSV8.8OSV7.1OSV5.9OSV5.5
EPSS
0.0%
top 87.13%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 14
Latest updateJul 16
Description
In the Linux kernel, the following vulnerability has been resolved:
netfilter: allow exp not to be removed in nf_ct_find_expectation
Currently nf_conntrack_in() calling nf_ct_find_expectation() will
remove the exp from the hash table. However, in some scenario, we
expect the exp not to be removed when the created ct will not be
confirmed, like in OVS and TC conntrack in the following patches.
This patch allows exp not to be removed by setting IPS_CONFIRMED
in the status of the tmpl.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages7 packages
▶CVEListV5linux/linux1bc91a5ddf3eaea0e0ea957cccf3abdcfcace00e — 3fa58a6fbd1e9e5682d09cdafb08fba004cb12ec+2
Also affects: Debian Linux 11.0