Out-of-bounds write in JONASBN Crypt::OpenSSL::PKCS12
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl have out-of-bounds (OOB) write flaws. When parsing a PKCS12 file, with a >= 1 GiB OCTET STRING (or BIT STRING) attribute on a SAFEBAG, via info() or info_as_hash(), a heap out-of-bounds write would be triggered with remote-code-execution potential (RCE) due to a signed integer overflow in the size calculation passed to Renew().
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-8507
- 2026-10-03 Alias added: GHSA-3qmj-qw66-fwx8
References
More JONASBN vulnerabilities
- TI-2026-07663 Crypt::OpenSSL::PKCS12 versions through 1.94 for Perl truncates passwords with embedded… CVSS 3.1CRITICAL 9.8
- TI-2026-08140 Out-of-bounds read in JONASBN Crypt::OpenSSL::PKCS12 CVSS 3.1CRITICAL 9.1
- TI-2026-41849 Out-of-bounds read in JONASBN Crypt::OpenSSL::X509 CVSS 3.1CRITICAL 9.1
- TI-2026-14365 NULL pointer dereference in JONASBN Crypt::OpenSSL::PKCS12 CVSS 3.1HIGH 7.5
- TI-2026-41848 NULL pointer dereference in JONASBN Crypt::OpenSSL::X509 CVSS 3.1HIGH 7.5
Sources
- CVE-2026-8507 · CVE Program
- CVE-2026-8507 · NVD
- FIRST EPSS
- GHSA-3qmj-qw66-fwx8 · GitHub Advisory Database · CC BY 4.0
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