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Vulnerabilities
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CVE-2020-1752

Updated on 30 Apr 2020

Severity

7.0 High severity

Details

CVSS score
7.0
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

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.

Details

Affected product:
AlmaLinux 8 , CentOS 6 , CentOS 6 ELS , CentOS 7 , CloudLinux 6 ELS , Debian 10 , Debian 9 , Oracle Linux 6 ELS , RHEL 6 , RHEL 7 , RHEL 8 , Ubuntu 16.04 , Ubuntu 16.04 ESM , Ubuntu 18.04 , Ubuntu 20.04
Affected packages:
glibc @ - (+14 more)
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.

Fixes