Is CVE-2021-31318 in the CISA KEV catalog?

No. CVE-2021-31318 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-31318?

CVE-2021-31318 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-31318?

CVE-2021-31318 has an EPSS score of 1.29% (67th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-31318?

Upgrade librlottie0-1 on ubuntu 20.04 to 0~git20200305.a717479+dfsg-1ubuntu0.1~esm1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-31318

MEDIUM

5.5

CVSS v3

NVD

Description

Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Type Confusion in the LOTCompLayerItem::LOTCompLayerItem function of their custom fork of the rlottie library. A remote attacker might be able to access heap memory out-of-bounds on a victim device via a malicious animated sticker.

CWE-843Type Confusion

How to fix

Remediation Available

librlottie0-1Ubuntu

Fixed in:0~git20200305.a717479+dfsg-1ubuntu0.1~esm1USN-7198-1

Fixed in:0.1+dfsg-2ubuntu0.1USN-7198-1

rlottieUbuntu

Fixed in:0~git20200305.a717479+dfsg-1ubuntu0.1~esm1USN-7198-1

Fixed in:0.1+dfsg-2ubuntu0.1USN-7198-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

1.29%probability of exploitation in 30 days

67thpercentile

Moderate risk: more likely to be exploited than 67% of all known CVEs.

References

Exploit2

Related Vulnerabilities

Other CWE-843 (Type Confusion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-0611	High	8.8	99%	KEV	Fix
CVE-2012-0507	Critical	9.8	98%	KEV + Ransom	-
CVE-2017-8291	High	7.8	97%	KEV	Fix
CVE-2019-0752	High	7.5	82%	KEV + Ransom	-
CVE-2017-0037	High	8.1	80%	KEV	-
CVE-2016-7201	High	8.8	80%	KEV	-

Embed a live status badge for CVE-2021-31318

Markdown

[![CVE-2021-31318](https://tridentstack.com/cve/badge/CVE-2021-31318.svg)](https://tridentstack.com/cve/CVE-2021-31318)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-31318"><img src="https://tridentstack.com/cve/badge/CVE-2021-31318.svg" alt="CVE-2021-31318"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.