CVE-2023-27530
A DoS vulnerability exists in Rack <v3.0.4.2, <v2.2.6.3, <v2.1.4.3 and <v2.0.9.3 within in the Multipart MIME parsing code in which could allow an attacker to craft requests that can be abuse to cause multipart parsing to take longer than expected.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A DoS vulnerability exists in Rack <v3.0.4.2, <v2.2.6.3, <v2.1.4.3 and <v2.0.9.3 within in the Multipart MIME parsing code in which could allow an attacker to craft requests that can be abuse to cause multipart parsing to take longer than expected.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.83% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400, CWE-770
- Affected
- rack/rack · debian/debian linux
- Source
- support@hackerone.com
References
- https://discuss.rubyonrails.org/t/cve-2023-27530-possible-dos-vulnerability-in-multipart-mime-parsing/82388Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00017.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231208-0015/
- https://www.debian.org/security/2023/dsa-5530Third Party Advisory
- https://discuss.rubyonrails.org/t/cve-2023-27530-possible-dos-vulnerability-in-multipart-mime-parsing/82388Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00017.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20231208-0015/
- https://www.debian.org/security/2023/dsa-5530Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.