A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out. Directory paths containing an initial tilde followed by a valid username were affected by this issue. A local attacker could exploit this flaw by creating a specially crafted path that, when processed by the glob function, would potentially lead to arbitrary code execution. This was fixed in version 2.32.
Published 2020-04-30 17:15:13
Updated 2022-10-28 20:06:29
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Exploit prediction scoring system (EPSS) score for CVE-2020-1752

0.11%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 44 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-1752

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.7
LOW AV:L/AC:H/Au:N/C:P/I:P/A:P
1.9
6.4
NIST
7.0
HIGH CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
1.0
5.9
Red Hat, Inc.
7.0
HIGH CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
1.0
5.9
NIST

CWE ids for CVE-2020-1752

  • Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
    Assigned by:
    • nvd@nist.gov (Secondary)
    • secalert@redhat.com (Primary)

References for CVE-2020-1752

Products affected by CVE-2020-1752

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