- Description
- In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when sel.family is unset This expands the validation introduced in commit 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.") syzbot created an SA with usersa.sel.family = AF_UNSPEC usersa.sel.prefixlen_s = 128 usersa.family = AF_INET Because of the AF_UNSPEC selector, verify_newsa_info doesn't put limits on prefixlen_{s,d}. But then copy_from_user_state sets x->sel.family to usersa.family (AF_INET). Do the same conversion in verify_newsa_info before validating prefixlen_{s,d}, since that's how prefixlen is going to be used later on.
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- NVD status
- Analyzed
CVSS 3.1
- Type
- Primary
- Base score
- 5.5
- Impact score
- 3.6
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
- Hype score
- Not currently trending
CVE-2024-50142 Critical Prefix Length Validation Fix in Linux Kernel's xfrm Module In the Linux kernel, a vulnerability has been fixed. The issue involves the xfrm system. It now checks the prefix length of new S... https://t.co/LVeENa6zIN
@VulmonFeeds
7 Nov 2024
57 Impressions
1 Retweet
1 Like
1 Bookmark
0 Replies
0 Quotes
CVE-2024-50142 In the Linux kernel, the following vulnerability has been resolved: xfrm: validate new SA's prefixlen using SA family when https://t.co/66prtvUrKU is unset This expands the vali… https://t.co/MHwXAbOU7O
@CVEnew
7 Nov 2024
439 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
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