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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2022-40958
HistoryDec 22, 2022 - 8:15 p.m.

CVE-2022-40958

2022-12-2220:15:39
Debian Security Bug Tracker
security-tracker.debian.org
24
vulnerability
firefox
thunderbird
insecure cookie handling
session fixation
subdomain
special characters
session attacks
shared context

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

0.001 Low

EPSS

Percentile

43.6%

By injecting a cookie with certain special characters, an attacker on a shared subdomain which is not a secure context could set and thus overwrite cookies from a secure context, leading to session fixation and other attacks. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

0.001 Low

EPSS

Percentile

43.6%