High severity · published Sep 20, 2021
CVE-2021-39531
An issue was discovered in libslax through v0.22.1
8.8
CVSS
1.3%
EPSS
No
On KEV
Description
An issue was discovered in libslax through v0.22.1. slaxLexer() in slaxlexer.c has a stack-based buffer overflow.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Libslax · Juniper
through 0.22.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39531
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-39531
Exploit
https://github.com/Juniper/libslax/issues/53
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Juniper juniper/libslax libslax latest version (as of commit 084ddf6ab4a55b59dfa9a53f9c5f14d192c4f8e5 Commits on Sep 1, 2018) is affected by: Buffer Overflow