Bug 2374454

Summary: CVE-2025-6547 perl-PBKDF2-Tiny: pbkdf2 silently returns static keys [fedora-42]
Product: [Fedora] Fedora Reporter: Jon Moroney <jmoroney>
Component: perl-PBKDF2-TinyAssignee: Petr Pisar <ppisar>
Status: CLOSED WORKSFORME QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: 42CC: perl-devel, ppisar
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["0b41372b-ed75-407b-a7d0-7f5653ee7f5a"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2025-06-24 07:39:07 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2374378    

Description Jon Moroney 2025-06-23 23:16:48 UTC 
More information about this security flaw is available in the following bug:

https://bugzilla.redhat.com/show_bug.cgi?id=2374378

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Comment 1 Petr Pisar 2025-06-24 07:39:07 UTC 
perl-PBKDF2-Tiny-0.005-30.fc42.noarch is not affected:

# perl -MPBKDF2::Tiny=derive -e 'print derive(q{SHA-1}, q{password}, q{salt})' | hexdump -C
00000000  6e 88 be 8b ad 7e ae 9d  9e 10 aa 06 12 24 03 4f  |n....~.......$.O|
00000010  ed 48 d0 3f                                       |.H.?|
00000014
# perl -MPBKDF2::Tiny=derive -e 'print derive(q{SHA-1})' | hexdump -C
00000000  6e 40 91 0a c0 2e c8 9c  eb b9 d8 98 b1 3a 09 d1  |n@...........:..|
00000010  cd 7a df 6f                                       |.z.o|
00000014