CVE-2018-18520
elfutils: eu-size cannot handle recursive ar files
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted ELF file.
Existe una desreferencia de dirección de memoria inválida en la función elf_end en elfutils hasta la versión v0.174. Aunque se supone que eu-size soporta archivos ar dentro de archivos ar, handle_ar en size.c cierra el archivo ar externo antes de gestionar todas la entradas internas. La vulnerabilidad permite que los atacantes provoquen una denegación de servicio (cierre inesperado de la aplicación) mediante un archivo ELF manipulado.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2018-10-19 CVE Reserved
- 2018-10-19 CVE Published
- 2024-06-07 EPSS Updated
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (9)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2019/02/msg00036.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2021/10/msg00030.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://sourceware.org/bugzilla/show_bug.cgi?id=23787 | 2024-08-05 |
| URL | Date | SRC |
|---|---|---|
| https://sourceware.org/ml/elfutils-devel/2018-q4/msg00057.html | 2021-11-30 |
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html | 2021-11-30 | |
| https://access.redhat.com/errata/RHSA-2019:2197 | 2021-11-30 | |
| https://usn.ubuntu.com/4012-1 | 2021-11-30 | |
| https://access.redhat.com/security/cve/CVE-2018-18520 | 2019-08-06 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1646477 | 2019-08-06 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Elfutils Project Search vendor "Elfutils Project" | Elfutils Search vendor "Elfutils Project" for product "Elfutils" | <= 0.174 Search vendor "Elfutils Project" for product "Elfutils" and version " <= 0.174" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
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" | 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" | 18.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.10" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.0 Search vendor "Opensuse" for product "Leap" and version "15.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Desktop Search vendor "Redhat" for product "Enterprise Linux Desktop" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Desktop" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Server Search vendor "Redhat" for product "Enterprise Linux Server" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Server" and version "7.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Workstation Search vendor "Redhat" for product "Enterprise Linux Workstation" | 7.0 Search vendor "Redhat" for product "Enterprise Linux Workstation" and version "7.0" | - |
Affected
| ||||||