NULL pointer dereference in Digium Asterisk
CVE-2019-15297
res_pjsip_t38 in Sangoma Asterisk 15.x before 15.7.4 and 16.x before 16.5.1 allows an attacker to trigger a crash by sending a declined stream in a response to a T.38 re-invite initiated by Asterisk. The crash occurs because of a NULL session media object dereference.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.034 (88.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.035 · newest: 0.034 · change: -0.001
Affected products
Weakness classification (CWE)
References
- packetstormsecurity.com/files/154371/Asterisk-Project-Security-Advisory-AST-201… (Patch, VDB Entry, Third Party Advisory)
- downloads.asterisk.org/pub/security/AST-2019-004.html (Patch, Vendor Advisory)
- seclists.org/fulldisclosure/2021/Mar/5 (mailing-list)
- packetstormsecurity.com/files/161671/Asterisk-Project-Security-Advisory-AST-202…
Frequently asked questions
- What is CVE-2019-15297?
- CVE-2019-15297 is a medium-severity vulnerability in Digium Asterisk, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2019-09-09.
- How severe is CVE-2019-15297?
- Medium severity. CVSS v3 base score is 6.5 out of 10.