Description
Sofia-SIP through 1.13.18 contains a heap out-of-bounds read vulnerability in msg_multipart_parse() that allows unauthenticated remote attackers to crash the process by sending oversized MIME boundaries. Attackers can send an INVITE with a multipart Content-Type whose boundary exceeds the body length, causing memcmp to read past the heap buffer and crash the process.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| freeswitch | sofia-sip | ≤ 1.13.18 | — |
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.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | sofia-sip | No fix yet | — |
| Debian 13 | sofia-sip | No fix yet | — |
| Debian 12 | sofia-sip | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | sofia-sip | No fix yet | — |
| Ubuntu 26.04 LTS | sofia-sip | No fix yet | — |
| Ubuntu 24.04 LTS | sofia-sip | No fix yet | — |
| Ubuntu 22.04 LTS | sofia-sip | No fix yet | — |
| Ubuntu 20.04 LTS | sofia-sip | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | sofia-sip | No fix yet | — |
| Ubuntu Pro 16.04 LTS | sofia-sip | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | sofia-sip | 1.13.19-1.1 | openSUSE-SU-2026:12350-1 |
Advisories 1
- openSUSE-SU-2026:12350-1 libsofia-sip-ua-glib3-1.13.19-1.1 on GA media SUSE / openSUSE Security Updates · Oct 31, 2026
References
- https://hackmd.io/@haind-pwn/sofia-sip-multipart-oob-read technical-description exploit
- https://github.com/freeswitch/sofia-sip/blob/ad36ac8f755308e8b87f98a505e83d4e408e5cc3/libsofia-sip-ua/msg/msg_mime.c#L404 technical-description
- https://github.com/freeswitch/sofia-sip product
- VulnCheck Advisory: Sofia-SIP through 1.13.18 Heap Out-of-Bounds Read via msg_multipart_parse third-party-advisory