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Xem ngay video know your C; Fixing a Linux Kernel security bug by rearranging an if phrase
There is a new CVE in town; CVE-2022-2639 which targets the OpenVSwitch kernel module and lets OOB attacks. But it can be fixed in one line! By replacing:
if A – B is lower than C
with
if B + C is greater than A
But aren’t these equal? Not in C but the answer goes deeper than “int overflow”.
We will have a look into the bug and it solution and will check our original C book to learn more about comparisons in C. Have fun 🙂
00:00 – Describing the bug
03:00 – Checking the Fix
08:03 – Programming a Proof Of Concept in C
12:00 – Describing the C if type conversiona
CVE:
Kernel Commit on github:
“know your C; Fixing a Linux Kernel security bug by rearranging an if phrase “, được lấy từ nguồn: https://www.youtube.com/watch?v=dPBcL6gqGS0
Tags của know your C; Fixing a Linux Kernel security bug by rearranging an if phrase: #Fixing #Linux #Kernel #security #bug #rearranging #phrase
Bài viết know your C; Fixing a Linux Kernel security bug by rearranging an if phrase có nội dung như sau: There is a new CVE in town; CVE-2022-2639 which targets the OpenVSwitch kernel module and lets OOB attacks. But it can be fixed in one line! By replacing:
if A – B is lower than C
with
if B + C is greater than A
But aren’t these equal? Not in C but the answer goes deeper than “int overflow”.
We will have a look into the bug and it solution and will check our original C book to learn more about comparisons in C. Have fun 🙂
00:00 – Describing the bug
03:00 – Checking the Fix
08:03 – Programming a Proof Of Concept in C
12:00 – Describing the C if type conversiona
CVE:
Kernel Commit on github:
Từ khóa của know your C; Fixing a Linux Kernel security bug by rearranging an if phrase: fix bug
Thông tin khác của know your C; Fixing a Linux Kernel security bug by rearranging an if phrase:
Video này hiện tại có 2922 lượt view, ngày tạo video là 2022-09-07 23:09:04 , bạn muốn tải video này có thể truy cập đường link sau: https://www.youtubepp.com/watch?v=dPBcL6gqGS0 , thẻ tag: #Fixing #Linux #Kernel #security #bug #rearranging #phrase
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