Bug 1980286 (CVE-2021-32723) - CVE-2021-32723 npm-prismjs: a malicious (long) string will take a long time to highlight may result in ReDoS
Summary: CVE-2021-32723 npm-prismjs: a malicious (long) string will take a long time t...
Keywords:
Status: NEW
Alias: CVE-2021-32723
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
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Depends On: 1981616 1981864
Blocks: 1980287
TreeView+ depends on / blocked
 
Reported: 2021-07-08 09:16 UTC by Marian Rehak
Modified: 2023-09-01 00:37 UTC (History)
20 users (show)

Fixed In Version: npm-prismjs 1.24.0
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in npm-prismjs. An attacker can craft a string that will take a very long time to highlight when used to work with un-trusted text resulting in ReDoS. This can affect the system availability. There is no known risk of privilege escalation on data compromise.
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Description Marian Rehak 2021-07-08 09:16:47 UTC 
An attacker can craft a string that will take a very very long time to highlight and result in ReDoS.  As a workaround, do not use ASCIIDoc or ERB to highlight untrusted text.

Upstream Reference:

https://github.com/PrismJS/prism/security/advisories/GHSA-gj77-59wh-66hg
Comment 3 subhro 2021-07-13 01:45:18 UTC 
Upstream fix: https://github.com/PrismJS/prism/pull/2774/files
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