6.5

CVE-2022-3643: debian debian_linux

Modified
AliasesUBUNTU-CVE-2022-3643DEBIAN-CVE-2022-3643
Published 07-12-2022Last modified 03-08-2024

Vulnerability summary

CVE-2022-3643 is a medium (CVSS 6.5) vulnerability in debian debian_linux. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 41.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.48%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 36 · Related 30
DLA-3244-1DLA-3245-1LSN-0099-1MGASA-2022-0477MGASA-2022-0478MGASA-2023-0008

Timeline

  1. 07-12-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an (unwritten?) assumption in the rest of the Linux network stack that packet protocol headers are all contained within the linear section of the SKB and some NICs behave badly if this is not the case. This has been reported to occur with Cisco (enic) and Broadcom NetXtrem II BCM5780 (bnx2x) though it may be an issue with other NICs/drivers as well. In case the frontend is sending requests with split headers, netback will forward those violating above mentioned assumption to the networking core, resulting in said misbehavior.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.48% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu94 products
  • linux< 4.4.0-236.270 | < 4.15.0-202.213 | < 5.4.0-137.154 | < 5.15.0-58.64
  • linux-aws< 4.4.0-1115.121 | < 4.4.0-1153.168 | < 4.15.0-1148.160 | < 5.4.0-1094.102 | < 5.15.0-1028.32
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
Debian2 products
Linux1 product
  • linux_kernel≥ 3.19, < 4.9.336 | ≥ 4.10, < 4.14.302 | ≥ 4.15, < 4.19.269 | ≥ 4.20, < 5.4.227 | ≥ 5.5, < 5.10.159 | ≥ 5.11, < 5.15.83 | ≥ 5.16, < 6.0.13

3 vendors · 97 products

References

29 links
Show all 29 references