CVE-2022-48522
Published: 22 August 2023
Summary
CVE-2022-48522 is a critical-severity Out-of-bounds Write (CWE-787) vulnerability in Perl Perl. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 4.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
The vulnerability is a stack-based crash in the S_find_uninit_var function in sv.c of Perl 5.34.0, tracked as CWE-787 and assigned a CVSS 3.1 score of 9.8. The flaw resides in the core Perl interpreter and can produce memory corruption that leads to remote code execution or local privilege escalation.
Remote, unauthenticated attackers can trigger the issue over the network to achieve arbitrary code execution or elevate privileges on affected systems without user interaction.
Advisories such as NetApp ntap-20230915-0008 point to the affected code locations in the Perl 5.34.0 source and direct users to vendor updates for remediation. The associated EPSS score has remained flat at 0.1732 with no indicated rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-51218
Vulnerability details
In Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.