CVE-2020-8608
QEMU: Slirp: potential OOB access due to unsafe snprintf() usages
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.
En libslirp versión 4.1.0, como es usado en QEMU versión 4.2.0, el archivo tcp_subr.c utiliza inapropiadamente los valores de retorno de snprintf, lo que conlleva a un desbordamiento del búfer en el código posterior.
An out-of-bounds heap buffer access flaw was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in tcp_emu() routine while emulating IRC and other protocols due to unsafe usage of the snprintf(3) function. A user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential execution of arbitrary code with privileges of the QEMU process on the host.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-02-04 CVE Reserved
- 2020-02-06 CVE Published
- 2024-06-01 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
- CWE-122: Heap-based Buffer Overflow
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| https://gitlab.freedesktop.org/slirp/libslirp/-/tags/v4.1.0 | Release Notes | |
| https://lists.debian.org/debian-lts-announce/2020/03/msg00015.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/03/msg00017.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2021/02/msg00012.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20201001-0002 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://gitlab.freedesktop.org/slirp/libslirp/commit/68ccb8021a838066f0951d4b2817eb6b6f10a843 | 2021-02-14 | |
| https://www.openwall.com/lists/oss-security/2020/02/06/2 | 2021-02-14 |
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html | 2021-02-14 | |
| https://security.gentoo.org/glsa/202003-66 | 2021-02-14 | |
| https://usn.ubuntu.com/4283-1 | 2021-02-14 | |
| https://www.debian.org/security/2020/dsa-4733 | 2021-02-14 | |
| https://access.redhat.com/security/cve/CVE-2020-8608 | 2020-07-21 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1798453 | 2020-07-21 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Libslirp Project Search vendor "Libslirp Project" | Libslirp Search vendor "Libslirp Project" for product "Libslirp" | 4.1.0 Search vendor "Libslirp Project" for product "Libslirp" and version "4.1.0" | - |
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
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| 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
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| 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
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| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
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