Vulnerability Details : CVE-2020-27507
The Kamailio SIP before 5.5.0 server mishandles INVITE requests with duplicated fields and overlength tag, leading to a buffer overflow that crashes the server or possibly have unspecified other impact.
Vulnerability category: Overflow
Products affected by CVE-2020-27507
- cpe:2.3:a:kamailio:kamailio:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-27507
0.26%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 66 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-27507
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-27507
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-27507
-
https://lists.debian.org/debian-lts-announce/2023/05/msg00030.html
[SECURITY] [DLA 3438-1] kamailio security update
-
https://github.com/kamailio/kamailio/issues/2503
Crash on qm_debug_check_frag() on INVITE · Issue #2503 · kamailio/kamailio · GitHubExploit;Issue Tracking
-
https://github.com/kamailio/kamailio/commit/ada3701d22b1fd579f06b4f54fa695fa988e685f
tm: do not add duplicate headers in local requests · kamailio/kamailio@ada3701 · GitHubPatch
Jump to