Vulnerability Details : CVE-2022-48740

In the Linux kernel, the following vulnerability has been resolved: selinux: fix double free of cond_list on error paths On error path from cond_read_list() and duplicate_policydb_cond_list() the cond_list_destroy() gets called a second time in caller functions, resulting in NULL pointer deref. Fix this by resetting the cond_list_len to 0 in cond_list_destroy(), making subsequent calls a noop. Also consistently reset the cond_list pointer to NULL after freeing. [PM: fix line lengths in the description]
Published 2024-06-20 12:15:12
Updated 2024-08-19 17:03:32
Source Linux
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2022-48740

Exploit prediction scoring system (EPSS) score for CVE-2022-48740

EPSS FAQ
0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 11 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-48740

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
 NIST 2024-08-19
5.5
 MEDIUM CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
N/A
N/A
 RedHat-CVE-2022-48740 2024-06-20

CWE ids for CVE-2022-48740

  • The product calls free() twice on the same memory address.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2022-48740

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