Description
A vulnerability was found in seladb PcapPlusPlus 25.05. The affected element is the function parse_by_block_type of the file light_pcapng.c of the component LightPcapNg Parser. Performing a manipulation of the argument captured_packet_length results in heap-based buffer overflow. It is possible to initiate the attack remotely. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| seladb | PcapPlusPlus | 25.05 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | pcapplusplus | 26.07-1.1 | openSUSE-SU-2026:11883-1 |
| openSUSE Leap 16.0 | pcapplusplus | 26.07-bp160.1.1 | openSUSE-SU-2026:22017-1 |
Advisories 2
- openSUSE-SU-2026:22017-1 Security update for pcapplusplus SUSE / openSUSE Security Updates · Oct 3, 2026
- openSUSE-SU-2026:11883-1 pcapplusplus-devel-26.07-1.1 on GA media SUSE / openSUSE Security Updates · Sep 25, 2026
References
- VDB-374590 | seladb PcapPlusPlus LightPcapNg light_pcapng.c parse_by_block_type heap-based overflow vdb-entry technical-description
- VDB-374590 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-13587 | CVE Analysis and Report third-party-advisory
- Submit #844479 | PcapPlusPlus v25.05 Heap-based Buffer Overflow third-party-advisory
- https://github.com/seladb/PcapPlusPlus/issues/2149 issue-tracking
- https://github.com/user-attachments/files/28207967/poc.zip exploit
- https://github.com/seladb/PcapPlusPlus/ product