PT-2022-23145 · Unknown · Contiki-Ng

Joakimeriksson · Published 2022-09-01 · Updated 2022-09-07 · CVE-2022-36053

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Contiki-NG versions prior to 4.8

Description The low-power IPv6 network stack of Contiki-NG has a buffer module that processes IPv6 extension headers in incoming data packets. The function uipbuf get next header casts a pointer to a uip ext hdr structure into the packet buffer at different offsets where extension headers are expected to be found, and then reads from this structure. Due to a lack of bounds checking, the casting can be done so that the structure extends beyond the packet's end. With a carefully crafted packet, it is possible to cause the Contiki-NG system to read data outside the packet buffer.

Recommendations For versions prior to 4.8, update to Contiki-NG 4.8 to fix the issue. As a temporary workaround, consider restricting the processing of IPv6 extension headers in incoming data packets until the patch is applied.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2022-36053

GHSA-2J9C-7754-W4CW

Affected Products

Contiki-Ng

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36053.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-36053 · Security Note
• https://osv.dev/vulnerability/CVE-2022-36053 · Vendor Advisory
• https://github.com/contiki-ng/contiki-ng/pull/1648 · Note
• https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-2j9c-7754-w4cw · Note
• https://t.me/cibsecurity/49161 · Telegram Post