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Crashes with libssh2_userauth_keyboard_interactive_ex
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From: Christian Schmitz via curl-library <curl-library_at_cool.haxx.se>
Date: Thu, 4 Mar 2021 18:54:48 +0100
Hello,
We got reports about crashes with recent CURL update and libssh2_userauth_keyboard_interactive_ex function.
Doing SFTP with LibSSH2 and OpenSSL causes a crash if no username/password is set.
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_platform.dylib 0x00007fff6a342e52 _platform_strlen + 18
1 libsystem_c.dylib 0x00007fff6a1f2cd8 strdup + 18
2 app 0x0000000113ced7c0 kbd_callback + 40
3 app 0x0000000113ae6032 libssh2_userauth_keyboard_interactive_ex + 1698
4 app 0x0000000113ce99fd ssh_statemach_act + 2082
5 app 0x0000000113ce9087 ssh_multi_statemach + 39
6 app 0x0000000113cc2648 multi_runsingle + 1079
7 app 0x0000000113cc2113 curl_multi_perform + 129
8 app 0x0000000113ca82ef curl_easy_perform + 309
Not sure what change in 7.75 causes this.
Sadly it looks like strdup and strlen are set.
Anyone seen this, too?
Sincerely
Christian
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Received on 2021-03-04
Date: Thu, 4 Mar 2021 18:54:48 +0100
Hello,
We got reports about crashes with recent CURL update and libssh2_userauth_keyboard_interactive_ex function.
Doing SFTP with LibSSH2 and OpenSSL causes a crash if no username/password is set.
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libsystem_platform.dylib 0x00007fff6a342e52 _platform_strlen + 18
1 libsystem_c.dylib 0x00007fff6a1f2cd8 strdup + 18
2 app 0x0000000113ced7c0 kbd_callback + 40
3 app 0x0000000113ae6032 libssh2_userauth_keyboard_interactive_ex + 1698
4 app 0x0000000113ce99fd ssh_statemach_act + 2082
5 app 0x0000000113ce9087 ssh_multi_statemach + 39
6 app 0x0000000113cc2648 multi_runsingle + 1079
7 app 0x0000000113cc2113 curl_multi_perform + 129
8 app 0x0000000113ca82ef curl_easy_perform + 309
Not sure what change in 7.75 causes this.
Sadly it looks like strdup and strlen are set.
Anyone seen this, too?
Sincerely
Christian
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Received on 2021-03-04