Critical severity · published Jan 12, 2023
CVE-2022-3515
A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser
9.8
CVSS
1.7%
EPSS
No
On KEV
Description
A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GN
Gnupg · Gnupg
2.1.0 before 2.2.41; 2.3.0 before 2.4.0 · source: NVD
GP
Gpg4win · Gpg4win
2.0.0 before 4.1.0 · source: NVD
LI
Libksba · Gnupg
before 1.6.3 · source: NVD
VS
Vs-desktop · Gnupg
3.1.16 before 3.1.26 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-3515
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-3515
Patch
https://access.redhat.com/security/cve/CVE-2022-3515
Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=2135610
Exploit
https://dev.gnupg.org/rK4b7d9cd4a018898d7714ce06f3faf2626c14582b
security.netapp.com
https://security.netapp.com/advisory/ntap-20230706-0008/
Third Party Advisory
https://www.gnupg.org/blog/20221017-pepe-left-the-ksba.html
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