CVE-2020-1752

Description

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.

CVSS breakdown

Affected products

• Canonical / Ubuntu Linux19.10 – 19.10
• Canonical / Ubuntu Linux16.04 – 16.04
• Canonical / Ubuntu Linux18.04 – 18.04
• Debian / debian_linux10.0 – 10.0
• gnu / glibc2.32.0
• GNU Libc / glibcAffected: versions 2.14 and later – Affected: versions 2.14 and later
• GNU Libc / glibcFixed: version 2.32 – Fixed: version 2.32
• NetApp / active_iq_unified_manager9.5 –
• NetApp / h410c_firmware
• NetApp / hci_management_node
• NetApp / solidfire
• NetApp / steelstore_cloud_integrated_storage

References

• MISChttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752
• MISChttps://sourceware.org/bugzilla/show_bug.cgi?id=25414
• MISChttps://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=ddc650e9b3dc916eab417ce9f79e67337b05035c
• MISChttps://security.netapp.com/advisory/ntap-20200511-0005/
• VENDOR_ADVISORYhttps://usn.ubuntu.com/4416-1/
• MISChttps://security.gentoo.org/glsa/202101-20
• MAILING_LISThttps://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• MAILING_LISThttps://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2022/10/msg00021.html