Debian Bug report logs -
#1041430
ruby-sanitize: CVE-2023-36823
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Bug#1041430
; Package src:ruby-sanitize
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(Tue, 18 Jul 2023 18:51:12 GMT) (full text, mbox, link).
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New Bug report received and forwarded. Copy sent to team@security.debian.org, Debian Ruby Team <pkg-ruby-extras-maintainers@lists.alioth.debian.org>
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(Tue, 18 Jul 2023 18:51:12 GMT) (full text, mbox, link).
Message #5 received at submit@bugs.debian.org (full text, mbox, reply):
Source: ruby-sanitize
X-Debbugs-CC: team@security.debian.org
Severity: grave
Tags: security
Hi,
The following vulnerability was published for ruby-sanitize.
CVE-2023-36823[0]:
| Sanitize is an allowlist-based HTML and CSS sanitizer. Using
| carefully crafted input, an attacker may be able to sneak arbitrary
| HTML and CSS through Sanitize starting with version 3.0.0 and prior
| to version 6.0.2 when Sanitize is configured to use the built-in
| "relaxed" config or when using a custom config that allows `style`
| elements and one or more CSS at-rules. This could result in cross-
| site scripting or other undesired behavior when the malicious HTML
| and CSS are rendered in a browser. Sanitize 6.0.2 performs
| additional escaping of CSS in `style` element content, which fixes
| this issue. Users who are unable to upgrade can prevent this issue
| by using a Sanitize config that doesn't allow `style` elements,
| using a Sanitize config that doesn't allow CSS at-rules, or by
| manually escaping the character sequence `</` as `<\/` in `style`
| element content.
https://github.com/rgrove/sanitize/commit/76ed46e6dc70820f38efe27de8dabd54dddb5220 (v6.0.2)
https://github.com/rgrove/sanitize/security/advisories/GHSA-f5ww-cq3m-q3g7
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2023-36823
https://www.cve.org/CVERecord?id=CVE-2023-36823
Please adjust the affected versions in the BTS as needed.
Added tag(s) upstream.
Request was from Salvatore Bonaccorso <carnil@debian.org>
to control@bugs.debian.org
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(Tue, 18 Jul 2023 20:45:04 GMT) (full text, mbox, link).
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