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Review reviewHigh

CVE-2024-35857

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmp_build_probe() First problem is a double call to __in_dev_get_rcu(), because the second one could return NULL. if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list) Second problem is a read from dev->ip6_ptr with no NULL check: if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list)) Use the correct RCU API to fix these. v2: add missing include <net/addrconf.h>

CVSS
7.5
EPSS
1.02%
60.0% percentile
CISA KEV
Not listed
Published
2024.05.18
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability1.02%
Technical severityCVSS 7.5

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: icmp: prevent possible NULL dereferences from icmp_build_probe() First problem is a double call to __in_dev_get_rcu(), because the second one could return NULL. if (__in_dev_get_rcu(dev) && __in_dev_get_rcu(dev)->ifa_list) Second problem is a read from dev->ip6_ptr with no NULL check: if (!list_empty(&rcu_dereference(dev->ip6_ptr)->addr_list)) Use the correct RCU API to fix these. v2: add missing include <net/addrconf.h>

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < 23b7ee4a8d559bf38eac7ce5bb2f6ebf76f9c401, >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < 599c9ad5e1d43f5c12d869f5fd406ba5d8c55270, >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < d68dc711d84fdcf698e5d45308c3ddeede586350, >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < 3e2979bf080c40da4f7c93aff8575ab8bc62b767, >= d329ea5bd8845f0b196bf41b18b6173340d6e0e4 < c58e88d49097bd12dfcfef4f075b43f5d5830941, >= 5.13, >= 5.13 < 5.15.158, >= 5.16 < 6.1.90, >= 6.2 < 6.6.30, >= 6.7 < 6.8.9, 6.9
Fixed versions
5.15.158, 6.1.90, 6.6.30, 6.8.9

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-476
CVE-2024-35857 — Linux Linux, linux kernel | SECUFOCUS NOW