Ubuntu.comUB:CVE-2020-6817CVE-2020-6817
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
29.7%
bleach.clean behavior parsing style attributes could result in a regular
expression denial of service (ReDoS). Calls to bleach.clean with an allowed
tag with an allowed style attribute are vulnerable to ReDoS. For example,
bleach.clean(…, attributes={‘a’: [‘style’]}).
Bugs
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | python-bleach | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | python-bleach | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | python-bleach | < any | UNKNOWN |
References
bugzilla.mozilla.org/show_bug.cgi?id=1623633
github.com/mozilla/bleach/commit/6e74a5027b57055cdaeb040343d32934121392a7
github.com/mozilla/bleach/commit/d6018f2539d271963c3e7f54f36ef11900363c69
github.com/mozilla/bleach/security/advisories/GHSA-vqhp-cxgc-6wmm
launchpad.net/bugs/cve/CVE-2020-6817
nvd.nist.gov/vuln/detail/CVE-2020-6817
security-tracker.debian.org/tracker/CVE-2020-6817
www.cve.org/CVERecord?id=CVE-2020-6817
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
29.7%