PT-2022-7455 · Rubygems+5 · Rails-Html-Sanitizer+5

Ooooooo_Q · Published 2022-12-13 · Updated 2026-03-13 · CVE-2022-23517

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions rails-html-sanitizer versions < 1.4.4

Description The issue is related to certain configurations of rails-html-sanitizer that use an inefficient regular expression. This inefficiency can lead to excessive backtracking when attempting to sanitize certain SVG attributes, resulting in a denial of service through CPU resource consumption. The vulnerability can be exploited by a remote attacker to cause a denial of service.

Recommendations Upgrade to rails-html-sanitizer version 1.4.4 or later.

Exploit

Fix

RCE

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

ALT-PU-2023-1337

ALT-PU-2023-4269

ALT-PU-2024-7815

BDU:2024-06514

CVE-2022-23517

DLA-3566-1

DLA-3902-1

GHSA-5X79-W82F-GW8W

OPENSUSE-SU-2023_3714-1

OPENSUSE-SU-2024:12769-1

OPENSUSE-SU-2024:14175-1

OPENSUSE-SU-2025:15125-1

OPENSUSE-SU-2026:10361-1

RHSA-2023:2097

RLSA-2023:2097

SUSE-SU-2023:3534-1

SUSE-SU-2023:3714-1

SUSE-SU-2023_3714-1

Affected Products

Alt Linux

Astra Linux

Red Os

Rocky Linux

Suse

Rails-Html-Sanitizer

References · 46

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23517.json · Exploit
• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-23517.yml · Exploit
• https://github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979 · Patch
• https://osv.dev/vulnerability/DLA-3566-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-06514 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-23517 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-23517 · Security Note
• https://osv.dev/vulnerability/CVE-2022-23517 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10361-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-23517 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15125-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-23517 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3902-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2023:3714-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:12769-1 · Vendor Advisory