CVE-2021-29922

library/std/src/net/parser.rs in Rust before 1.53.0 does not properly consider extraneous zero characters at the beginning of an IP address string, which (in some situations) allows attackers to bypass access control that is based on IP addresses, because of unexpected octal interpretation.

CVSS v3.1

9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CVSS v2.0

6.4 MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:P

EPSS

2.62% chance of exploitation in the next 30 days, 84th percentile

Published

2021-08-07

Updated

2024-08-03

Proof-of-concept exploits (1)

• sickcodes/security/blob/master/advisories/SICK-2021-015.md

References

• CVE Record
• NVD entry

Related

• CVE-2020-25507
• CVE-2020-27402
• CVE-2020-27403
• CVE-2021-28918
• CVE-2021-29662
• CVE-2021-29921