7.8

CVE-2022-48911: netfilter: nf_queue: fix possible use-after-free

Modified
AliasesUBUNTU-CVE-2022-48911DEBIAN-CVE-2022-48911
Published 22-08-2024Last modified 05-08-2026

Vulnerability summary

CVE-2022-48911 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.9% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.21%
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 27 · Related 27
SUSE-SU-2024:3547-1SUSE-SU-2024:3559-1SUSE-SU-2024:3563-1SUSE-SU-2024:3565-1SUSE-SU-2024:3566-1SUSE-SU-2024:3567-1

Timeline

  1. 22-08-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: fix possible use-after-free Eric Dumazet says: The sock_hold() side seems suspect, because there is no guarantee that sk_refcnt is not already 0. On failure, we cannot queue the packet and need to indicate an error. The packet will be dropped by the caller. v2: split skb prefetch hunk into separate change

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.21% 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.

Ubuntu99 products
  • linuxAll versions (No fix recorded) | < 4.15.0-177.186 | < 5.4.0-117.132
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1128.137 | < 5.4.0-1078.84
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 271b72c7fa82c2c7a795bc16896149933110672d, < 21b27b2baa27423286e9b8d3f0b194d587083d95 | ≥ 271b72c7fa82c2c7a795bc16896149933110672d, < ef97921ccdc243170fcef857ba2a17cf697aece5 | ≥ 271b72c7fa82c2c7a795bc16896149933110672d, < 34dc4a6a7f261736ef7183868a5bddad31c7f9e3 | ≥ 271b72c7fa82c2c7a795bc16896149933110672d, < 43c25da41e3091b31a906651a43e80a2719aa1ff | ≥ 271b72c7fa82c2c7a795bc16896149933110672d, < 4d05239203fa38ea8a6f31e228460da4cb17a71a | ≥ 271b72c7fa82c2c7a795bc16896149933110672d, < dd648bd1b33a828f62befa696b206c688da0ec43 | ≥ 271b72c7fa82c2c7a795bc16896149933110672d, < dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee | ≥ 271b72c7fa82c2c7a795bc16896149933110672d, < c3873070247d9e3c7a6b0cf9bf9b45e8018427b1 | 2.6.29
  • linux_kernel≥ 2.6.29, < 4.9.305 | ≥ 4.10, < 4.14.270 | ≥ 4.15, < 4.19.233 | ≥ 4.20, < 5.4.183 | ≥ 5.5, < 5.10.104 | ≥ 5.11, < 5.15.27 | ≥ 5.16, < 5.16.13 | 5.17:rc1 | 5.17:rc2 | 5.17:rc3 | 5.17:rc4 | 5.17:rc5 | 5.17:rc6
Debian1 product
  • linux< 5.16.14-1

3 vendors · 102 products

References

12 links
Show all 12 references