Enforce a strict output length check in CRYPTO_ccm128_tag #8810
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Return error if the output tag buffer size doesn't match the tag size exactly. This prevents the caller from using that portion of the tag buffer that remains uninitialized after an otherwise succesfull call to CRYPTO_ccm128_tag. Bug found by OSS-Fuzz. Fix suggested by Kurt Roeckx. Signed-off-by: Guido Vranken <guidovranken@gmail.com>
mattcaswell
added
branch: 1.1.1
mattcaswell
approved these changes
Apr 23, 2019
mattcaswell
added
the
approval: review pending
|
Ping @openssl/committers - this is low hanging fruit. |
mspncp
approved these changes
Apr 24, 2019
mspncp
added
approval: done
paulidale
approved these changes
Apr 24, 2019
levitte
pushed a commit
that referenced
this pull request
Apr 25, 2019
Return error if the output tag buffer size doesn't match the tag size exactly. This prevents the caller from using that portion of the tag buffer that remains uninitialized after an otherwise succesfull call to CRYPTO_ccm128_tag. Bug found by OSS-Fuzz. Fix suggested by Kurt Roeckx. Signed-off-by: Guido Vranken <guidovranken@gmail.com> Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from #8810) (cherry picked from commit 514c9da)
|
Pushed. Thanks. |
levitte
pushed a commit
that referenced
this pull request
Apr 25, 2019
Return error if the output tag buffer size doesn't match the tag size exactly. This prevents the caller from using that portion of the tag buffer that remains uninitialized after an otherwise succesfull call to CRYPTO_ccm128_tag. Bug found by OSS-Fuzz. Fix suggested by Kurt Roeckx. Signed-off-by: Guido Vranken <guidovranken@gmail.com> Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> Reviewed-by: Paul Dale <paul.dale@oracle.com> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from #8810)
guidovranken
added a commit
to guidovranken/cryptofuzz
that referenced
this pull request
Jul 4, 2019
See openssl/openssl#8810 Will not be backported to 1.1.0, so work around it in the fuzzer.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Return error if the output tag buffer size doesn't match
the tag size exactly. This prevents the caller from
using that portion of the tag buffer that remains
uninitialized after an otherwise succesfull call to
CRYPTO_ccm128_tag.
Bug found by OSS-Fuzz.
Fix suggested by Kurt Roeckx.
Signed-off-by: Guido Vranken guidovranken@gmail.com
Checklist