Description
Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and 16.x before 16.0.1 allows remote attackers to crash Asterisk via a specially crafted DNS SRV or NAPTR response, because a buffer size is supposed to match an expanded length but actually matches a compressed length.
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.
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | asterisk | 15.7.1-r0 | — |
| Alpine v3.23 | asterisk | 15.7.1-r0 | — |
| Alpine v3.22 | asterisk | 15.7.1-r0 | — |
| Alpine v3.21 | asterisk | 15.7.1-r0 | — |
| Alpine v3.20 | asterisk | 15.7.1-r0 | — |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | asterisk | 15.7.1-r0 | — |
| Alpine v3.18 | asterisk | 15.7.1-r0 | — |
| Alpine v3.17 | asterisk | 15.7.1-r0 | — |
| Alpine v3.16 | asterisk | 15.7.1-r0 | — |
| Alpine v3.15 | asterisk | 15.7.1-r0 | — |
| Alpine v3.14 | asterisk | 15.7.1-r0 | — |
| Alpine v3.13 | asterisk | 15.7.1-r0 | — |
| Alpine v3.12 | asterisk | 15.7.1-r0 | — |
| Alpine v3.11 | asterisk | 15.7.1-r0 | — |
| Alpine v3.10 | asterisk | 15.7.1-r0 | — |
| Alpine v3.9 | asterisk | 15.7.1-r0 | — |
| Alpine v3.8 | asterisk | 15.6.2-r0 | — |
| Alpine v3.7 | asterisk | 15.6.2-r0 | — |