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CVE-2021-31315

Published: May 18, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-787
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
1.3%
Top 33.6%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
No Fix Available

Description

Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Stack Based Overflow in the blit function of their custom fork of the rlottie library. A remote attacker might be able to access Telegram's stack memory out-of-bounds on a victim device via a malicious animated sticker.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-787

Affected Products

telegramtelegram
SaaS
Communications / messaging-chat
n/an/a
telegramcommercialCommunicationsaka telegram desktop

Attack Graph

Products CVE Techniques Tactics

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Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
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References

https://www.shielder.it/advisories/telegram-rlottie-blit-stack-buffer-overflow/
shielder.it
https://www.shielder.it/blog/2021/02/hunting-for-bugs-in-telegrams-animated-stickers-remote-attack-surface/
shielder.it

Timeline

Published
May 18, 2021
Last Updated
Nov 21, 2024

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