CVE-2023-4055

Mozilla: Cookie jar overflow caused unexpected cookie jar state

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent to the host was no longer consistent with expected cookie jar state. This could have caused requests to be sent with some cookies missing. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Cuando se superaba el número de cookies por dominio en `document.cookie`, el tarro de cookies real enviado al host ya no era coherente con el estado de tarro de cookies esperado. Esto podía provocar que se enviasen peticiones en las que faltasen algunas cookies. Esta vulnerabilidad afecta a las versiones anteriores a Firefox 116, Firefox ESR 102.14, y Firefox ESR 115.1.

The Mozilla Foundation Security Advisory describes this flaw as:

When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent to the host was no longer consistent with expected cookie jar state. This could have caused requests to be sent with some cookies missing.

*Credits: Marco Squarcina

CVSS Scores

NISTv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-08-01 CVE Reserved
2023-08-01 CVE Published
2024-09-02 EPSS Updated
2024-10-22 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-784: Reliance on Cookies without Validation and Integrity Checking in a Security Decision

CAPEC

References (9)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2023/08/msg00008.html
https://lists.debian.org/debian-lts-announce/2023/08/msg00010.html
https://www.debian.org/security/2023/dsa-5464	Third Party Advisory
https://www.debian.org/security/2023/dsa-5469	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2023-29	2023-08-09
https://www.mozilla.org/security/advisories/mfsa2023-30	2023-08-09
https://www.mozilla.org/security/advisories/mfsa2023-31	2023-08-09
https://access.redhat.com/security/cve/CVE-2023-4055	2023-08-07
https://bugzilla.redhat.com/show_bug.cgi?id=2228367	2023-08-07

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"				< 116.0 Search vendor "Mozilla" for product "Firefox" and version " < 116.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				>= 102.0 < 102.14 Search vendor "Mozilla" for product "Firefox Esr" and version " >= 102.0 < 102.14"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				>= 115.0 < 115.1 Search vendor "Mozilla" for product "Firefox Esr" and version " >= 115.0 < 115.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				12.0 Search vendor "Debian" for product "Debian Linux" and version "12.0"		-		Affected