CVE-2020-1752
glibc: use-after-free in glob() function when expanding ~user
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
Una vulnerabilidad de uso de la memoria previamente liberada introducida en glibc versiones anteriores a la versión 2.14, se descubrió en la manera en que se llevó a cabo la expansión de tilde. Las rutas de directorios que contenían una tilde inicial seguida de un nombre de usuario válido estaban afectadas por este problema. Un atacante local podría explotar este fallo creando una ruta especialmente diseñada que, al ser procesada por la función glob, podría conllevar a una ejecución de código arbitraria. Esto fue corregido en la versión 2.32.
A use-after-free vulnerability was found in glibc 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.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-11-27 CVE Reserved
- 2020-04-30 CVE Published
- 2024-04-06 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (11)
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1752 | 2023-11-07 | |
https://sourceware.org/bugzilla/show_bug.cgi?id=25414 | 2023-11-07 |
URL | Date | SRC |
---|---|---|
https://security.gentoo.org/glsa/202101-20 | 2023-11-07 | |
https://usn.ubuntu.com/4416-1 | 2023-11-07 | |
https://access.redhat.com/security/cve/CVE-2020-1752 | 2020-11-04 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1810718 | 2020-11-04 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Netapp Search vendor "Netapp" | H410c Firmware Search vendor "Netapp" for product "H410c Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | H410c Search vendor "Netapp" for product "H410c" | - | - |
Safe
|
Gnu Search vendor "Gnu" | Glibc Search vendor "Gnu" for product "Glibc" | < 2.32.0 Search vendor "Gnu" for product "Glibc" and version " < 2.32.0" | - |
Affected
| ||||||
Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10" | - |
Affected
| ||||||
Netapp Search vendor "Netapp" | Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager" | >= 9.5 Search vendor "Netapp" for product "Active Iq Unified Manager" and version " >= 9.5" | vmware_vsphere |
Affected
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Netapp Search vendor "Netapp" | Hci Management Node Search vendor "Netapp" for product "Hci Management Node" | - | - |
Affected
| ||||||
Netapp Search vendor "Netapp" | Solidfire Search vendor "Netapp" for product "Solidfire" | - | - |
Affected
| ||||||
Netapp Search vendor "Netapp" | Steelstore Cloud Integrated Storage Search vendor "Netapp" for product "Steelstore Cloud Integrated Storage" | - | - |
Affected
| ||||||
Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
|