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CVE-2020-1752

Published: 30 April 2020

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.

Priority

Low

CVSS 3 base score: 7.0

Status

Package Release Status
eglibc
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Does not exist

Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Needed

glibc
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 21.10 (Impish Indri) Not vulnerable
(2.31-0ubuntu9)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(2.31-0ubuntu9)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(2.31-0ubuntu9)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (2.27-3ubuntu1.2)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (2.23-0ubuntu11.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ddc650e9b3dc916eab417ce9f79e67337b05035c