CVE-2008-3443 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 15.7% (pctl 97)
Patch early
A public exploit exists.
Description
The regular expression engine (regex.c) in Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 allows remote attackers to cause a denial of service (infinite loop and crash) via multiple long requests to a Ruby socket, related to memory allocation failure, and as demonstrated against Webrick.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| EPSS | 15.68% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-399 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2008-08-14 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| ruby-lang | ruby |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Ruby 1.9 - regex engine Remote Socket Memory Leak | 2008-08-13 |
References
- http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
- http://secunia.com/advisories/31430
- http://secunia.com/advisories/32165
- http://secunia.com/advisories/32219
- http://secunia.com/advisories/32371
- http://secunia.com/advisories/32372
- http://secunia.com/advisories/33185
- http://secunia.com/advisories/33398
- http://secunia.com/advisories/35074
- http://securityreason.com/securityalert/4158
- http://support.apple.com/kb/HT3549
- http://support.avaya.com/elmodocs2/security/ASA-2008-424.htm
- http://www.debian.org/security/2009/dsa-1695
- http://www.redhat.com/support/errata/RHSA-2008-0895.html
- http://www.redhat.com/support/errata/RHSA-2008-0897.html
- http://www.securityfocus.com/bid/30682
- http://www.securitytracker.com/id?1021075
- http://www.us-cert.gov/cas/techalerts/TA09-133A.html
- http://www.vupen.com/english/advisories/2009/1297
- https://exchange.xforce.ibmcloud.com/vulnerabilities/44688
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