PT-2023-22705 · Altran · Picotcp

Published 2023-04-19 · Updated 2023-04-28 · CVE-2023-30463

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Altran picoTCP versions through 1.7.0

Description The issue is caused by an integer overflow in pico ipv6 alloc when processing large ICMPv6 packets, leading to memory corruption and subsequent denial of service. This affects installations with Ethernet support where a packet size greater than 65495 may occur.

Recommendations For versions through 1.7.0, consider disabling Ethernet support or restricting packet sizes to prevent exploitation until a patch is available. As a temporary workaround, limit the size of ICMPv6 packets to minimize the risk of memory corruption. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2023-30463

Affected Products

Picotcp

References · 6

• 🔥 https://georgyg.com/home/picotcp-denial-of-service-cve-2023-30463 · Exploit
• https://osv.dev/vulnerability/CVE-2023-30463 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-30463 · Security Note
• https://github.com/tass-belgium/picotcp/releases · Note
• https://t.me/cvenotify/48573 · Telegram Post
• https://t.me/cibsecurity/62457 · Telegram Post