Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

glibc>=2.28对unsorted bin attack进行了完整性检查 #544

Open
fubuki8087 opened this issue May 21, 2019 · 2 comments
Open

glibc>=2.28对unsorted bin attack进行了完整性检查 #544

fubuki8087 opened this issue May 21, 2019 · 2 comments

Comments

@fubuki8087
Copy link

glibc在2.28以后,在代码

unsorted_chunks (av)->bk = bck;
bck->fd = unsorted_chunks (av);

的前面加入了完整性检查

if (__glibc_unlikely (bck->fd != victim))
            malloc_printerr ("malloc(): corrupted unsorted chunks 3");

导致原有的攻击方法不再可行

@iromise
Copy link
Member

iromise commented May 22, 2019

是的,欢迎提交 PR 来说明这一问题,以及可以用更好的方式来表达 unsorted bin attack。

@WinMin
Copy link
Contributor

WinMin commented May 28, 2019

可以直接提pr哦

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

3 participants