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CVE-2021-43299

CRITICALCVSS 9.8/10EPSS 2.48%

Last modified

CVE-2021-43299 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Stack overflow in PJSUA API when calling pjsua_player_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.. EPSS estimates a 2.48% chance of exploitation in the next 30 days.

Description

Stack overflow in PJSUA API when calling pjsua_player_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.48%

82.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
TeluuPjsip<= 2.11.1
DebianDebian Linux9.0
DebianDebian Linux10.0
DebianDebian Linux11.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-43299?
Stack overflow in PJSUA API when calling pjsua_player_create. An attacker-controlled 'filename' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.
How severe is CVE-2021-43299?
CVE-2021-43299 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.48% probability of exploitation in the next 30 days.
How do I fix CVE-2021-43299?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43299?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST