CVE-2020-6806
Mozilla: BodyStream:: OnInputStreamReady was missing protections against state confusion
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.
Al diseñar cuidadosamente las resoluciones de promesas, fue posible causar una lectura fuera de límites al final de una matriz redimensionada durante la ejecución del script. Esto podría haber conllevado a daños en la memoria y a un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 68.6, Firefox versiones anteriores a 74, Firefox versiones anteriores a ESR68.6 y Firefox ESR versiones anteriores a 68.6.
The Mozilla Foundation Security Advisory describes this flaw as:
By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash.
Firefox suffers from an out-of-bounds access vulnerability in js::ReadableStreamCloseInternal.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-01-10 CVE Reserved
- 2020-03-12 CVE Published
- 2024-04-01 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-125: Out-of-bounds Read
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/157524/Firefox-js-ReadableStreamCloseInternal-Out-Of-Bounds-Access.html | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://usn.ubuntu.com/4328-1 | 2023-02-03 | |
| https://usn.ubuntu.com/4335-1 | 2023-02-03 | |
| https://www.mozilla.org/security/advisories/mfsa2020-08 | 2023-02-03 | |
| https://www.mozilla.org/security/advisories/mfsa2020-09 | 2023-02-03 | |
| https://www.mozilla.org/security/advisories/mfsa2020-10 | 2023-02-03 | |
| https://access.redhat.com/security/cve/CVE-2020-6806 | 2020-03-23 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1812200 | 2020-03-23 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | < 74.0 Search vendor "Mozilla" for product "Firefox" and version " < 74.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Firefox Esr Search vendor "Mozilla" for product "Firefox Esr" | < 68.6.0 Search vendor "Mozilla" for product "Firefox Esr" and version " < 68.6.0" | - |
Affected
| ||||||
| Mozilla Search vendor "Mozilla" | Thunderbird Search vendor "Mozilla" for product "Thunderbird" | < 68.6.0 Search vendor "Mozilla" for product "Thunderbird" and version " < 68.6.0" | - |
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" | 19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10" | - |
Affected
| ||||||