Bug 1225741 (CVE-2024-36903) - VUL-0: CVE-2024-36903: kernel: ipv6: Fix potential uninit-value access in __ip6_make_skb()
Summary: VUL-0: CVE-2024-36903: kernel: ipv6: Fix potential uninit-value access in __i...
Status: NEW
Alias: CVE-2024-36903
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/408201/
Whiteboard: CVSSv3.1:SUSE:CVE-2024-36903:5.6:(AV:...
Keywords:
Depends on:
Blocks:
 
Reported: 2024-05-31 12:07 UTC by SMASH SMASH
Modified: 2024-07-08 15:08 UTC (History)
2 users (show)

See Also:
Found By: Security Response Team
Services Priority:
Business Priority:
Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description SMASH SMASH 2024-05-31 12:07:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ipv6: Fix potential uninit-value access in __ip6_make_skb()

As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in
__ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags
instead of testing HDRINCL on the socket to avoid a race condition which
causes uninit-value access.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-36903
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-36903.mbox
https://git.kernel.org/stable/c/68c8ba16ab712eb709c6bab80ff151079d11d97a
https://git.kernel.org/stable/c/2367bf254f3a27ecc6e229afd7a8b0a1395f7be3
https://git.kernel.org/stable/c/4e13d3a9c25b7080f8a619f961e943fe08c2672c
https://www.cve.org/CVERecord?id=CVE-2024-36903