CVE-2026-8507
Publication date 17 May 2026
Last updated 21 May 2026
Ubuntu priority
Description
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().
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| libcrypt-openssl-pkcs12-perl | 26.04 LTS resolute |
Needs evaluation
|
| 25.10 questing |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
9.8 · Critical
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-8507
- https://lists.security.metacpan.org/cve-announce/msg/40149247/
- https://github.com/dsully/perl-crypt-openssl-pkcs12/issues/55
- https://github.com/dsully/perl-crypt-openssl-pkcs12/issues/56
- https://github.com/dsully/perl-crypt-openssl-pkcs12/commit/b9d0469c6d8f5b5c6c2a45a3d0647a532b749397.patch
- https://metacpan.org/release/JONASBN/Crypt-OpenSSL-PKCS12-1.95/view/Changes.md
- http://www.openwall.com/lists/oss-security/2026/05/17/5