CVE-2018-16657: Null Pointer Dereference
First published: Fri Sep 07 2018(Updated: )
In Kamailio before 5.0.7 and 5.1.x before 5.1.4, a crafted SIP message with an invalid Via header causes a segmentation fault and crashes Kamailio. The reason is missing input validation in the crcitt_string_array core function for calculating a CRC hash for To tags. (An additional error is present in the check_via_address core function: this function also misses input validation.) This could result in denial of service and potentially the execution of arbitrary code.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Kamailio Kamailio | <5.0.7 | |
| Kamailio Kamailio | >=5.1.0<5.1.4 | |
| debian/kamailio | 5.2.1-1 5.2.1-1+deb10u1 5.4.4-1 5.6.3-2 5.7.2-1 | |
| debian/kamailio | <=4.4.4-2<=4.2.0-2+deb8u3 | 4.4.4-2+deb9u3 5.1.4-1 |
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Reference Links
- https://lists.debian.org/debian-lts-announce/2018/09/msg00013.html
- https://skalatan.de/blog/advisory-hw-2018-06
- https://www.debian.org/security/2018/dsa-4292
- https://github.com/kamailio/kamailio/commit/ad68e402ece8089f133c10de6ce319f9e28c0692
- https://github.com/kamailio/kamailio/commit/d67b2f9874ca23bd69f18df71b8f53b1b6151f6d
- https://github.com/kamailio/kamailio/commit/f07dabffef98c7088cdbc2bd695a4ae7a241b159
- https://security-tracker.debian.org/tracker/CVE-2018-16657
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16657
- https://salsa.debian.org/pkg-voip-team/kamailio/tree/stretch-security
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=908324
- collector/nvd-index
- collector/security-tracker-debian
- collector/debian-bugs
- alias/CVE-2018-16657
- agent/weakness
- agent/severity
- agent/author
- agent/type
- agent/event
- agent/description
- agent/first-publish-date
- agent/remedy
- agent/softwarecombine
- agent/references
- agent/tags
- agent/last-modified-date
- collector/mitre-cve
- source/MITRE
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- vendor/kamailio
- canonical/kamailio kamailio
- version/kamailio kamailio/5.1.0
- package-manager/debian