OTRS Security Advisory 2021-19

Release Note

OTRS Security Advisory 2021-19

Oktober 18, 2021 — Please read carefully and check if the version of your OTRS system is affected by this vulnerability.

Please send information regarding vulnerabilities in OTRS to: security@otrs.org

PGP Key

  • pub 2048R/9C227C6B 2011-03-21
  • uid OTRS Security Team <security@otrs.org>
  • GPG Fingerprint E330 4608 DA6E 34B7 1551 C244 7F9E 44E9 9C22 7C6B

Security Advisory Details

  • ID: OSA-2021-19
  • Date: 2021-10-18
  • Title: Regular Expression Denial of Service in postcs
  • Severity: 5.3 MEDIUM
  • Product: OTRS 8.0.x, OTRS 7.0.x
  • Fixed in: OTRS 8.0.17, OTRS 7.0.30
  • FULL CVSS v3.1 VECTOR: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • References: CVE-2021-23368

OSA-2021-19 Regular Expression Denial of Service in postcs (CVE-2021-23368)

 

PRODUCT AFFECTED:

This issue affects OTRS 7.0.x, 8.0.x.

PROBLEM:

OTRS uses outdated thirdparty npm module “resolve-url-loader”, which depends on “postcs” module and it’s vulnerable to the ReDoS attack.

This issue affects:

OTRS AG OTRS 7.0.x version 7.0.29 and prior versions; 8.0.x version 8.0.16 and prior versions.

This issue was seen during internal research.

SOLUTION:

Update to OTRS 8.0.17, OTRS 7.0.30.

This issue is being tracked as 2021091442000769.

MODIFICATION HISTORY:

  • 2021-10-18: Initial Publication.

CVSS SCORE:

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

RISK LEVEL:

5.3 MEDIUM

ACKNOWLEDGEMENTS:

 

 

Release Details

  • Release name:
    OTRS Security Advisory 2021-19
  • Release date:
    18. October 2021
  • Release type:
    security advisories