Medium severity · published Mar 31, 2023
CVE-2023-28756
A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1
5.3
CVSS
2.5%
EPSS
No
On KEV
Description
A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.5% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
10.0 · source: NVD
FE
Fedora · Fedoraproject
36; 37; 38 · source: NVD
RU
Ruby · Ruby-lang
through 2.7.7 · source: NVD
TI
Time · Ruby-lang
0.1.0; 0.2.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-28756
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-28756
Release Notes
https://github.com/ruby/time/releases/
Mailing List
https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKA/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2T/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5Z/
security.gentoo.org
https://security.gentoo.org/glsa/202401-27
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