// For flags

CVE-2020-9308

Gentoo Linux Security Advisory 202003-28

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

archive_read_support_format_rar5.c in libarchive before 3.4.2 attempts to unpack a RAR5 file with an invalid or corrupted header (such as a header size of zero), leading to a SIGSEGV or possibly unspecified other impact.

El archivo archive_read_support_format_rar5.c en libarchive versiones anteriores a 3.4.2, intenta descomprimir un archivo RAR5 con un encabezado no válido o corrupto (tal y como un tamaño de encabezado de cero), conllevando a un SIGSEGV o posiblemente a otro impacto no especificado.

It was discovered that libarchive incorrectly handled certain archive files. An attacker could possibly use this issue to access sensitive information. It was discovered that libarchive incorrectly handled certain archive files. An attacker could possibly use this issue to cause a crash resulting in a denial of service or possibly unspecified other impact. This issue only affected Ubuntu 19.10. Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-02-20 CVE Reserved
  • 2020-02-20 CVE Published
  • 2024-08-04 CVE Updated
  • 2025-07-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Libarchive
Search vendor "Libarchive"
 Libarchive
Search vendor "Libarchive" for product "Libarchive"
 >= 3.4.0 < 3.4.2
Search vendor "Libarchive" for product "Libarchive" and version " >= 3.4.0 < 3.4.2"
-
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"
esm
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
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 31
Search vendor "Fedoraproject" for product "Fedora" and version "31"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 32
Search vendor "Fedoraproject" for product "Fedora" and version "32"
-
Affected