Prevent out-of-bounds read in PJSIP (pjsip pjproject)

CVE-2021-43845
HIGH 8.2

At a glance

Source
NVD
EPSS
EPSS 3.89 % · percentile 90 ()
State
PUBLISHED
Published
Updated
Assigner
GitHub_M
NVD status
Modified

Description

PJSIP is a free and open source multimedia communication library. In version 2.11.1 and prior, if incoming RTCP XR message contain block, the data field is not checked against the received packet size, potentially resulting in an out-of-bound read access. This affects all users that use PJMEDIA and RTCP XR. A malicious actor can send a RTCP XR message with an invalid packet size.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:LGitHub_M
CVSS 3.1HIGH 8.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:LNVD · security-advisories@github.com (Secondary)
CVSS 3.1CRITICAL 9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0MEDIUM 6.4AV:N/AC:L/Au:N/C:P/I:N/A:PNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
pjsip · pjprojectaffected <= 2.11.1

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD