CVE-2023-42754
Kernel: ipv4: null pointer dereference in ipv4_send_dest_unreach()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer (skb) was assumed to be associated with a device before calling __ip_options_compile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAP_NET_ADMIN privileges to crash the system.
Timeline
- CVE published
- Record last updated
Affected versions
- kernel-rt
Version range not reported
- kernel
Version range not reported
- kernel
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- kernel
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- kernel
Version range not reported
- kernel-rt
Version range not reported
- kernel-rt
Version range not reported