diff options
Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/2946.toml')
| -rw-r--r-- | gitlab/issues/target_missing/host_missing/accel_missing/2946.toml | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/2946.toml b/gitlab/issues/target_missing/host_missing/accel_missing/2946.toml deleted file mode 100644 index 8aeac10c0..000000000 --- a/gitlab/issues/target_missing/host_missing/accel_missing/2946.toml +++ /dev/null @@ -1,22 +0,0 @@ -id = 2946 -title = "crypto/aes.c (used for emulating aes instructions) has a timing side-channel" -state = "opened" -created_at = "2025-05-02T07:29:06.756Z" -closed_at = "n/a" -labels = ["Build System", "Cryptography"] -url = "https://gitlab.com/qemu-project/qemu/-/issues/2946" -host-os = "any" -host-arch = "any" -qemu-version = "a9cd5bc6399a80fcf233ed0fffe6067b731227d8" -guest-os = "n/a" -guest-arch = "x86 or arm, maybe more..." -description = """https://gitlab.com/qemu-project/qemu/-/blob/a9cd5bc6399a80fcf233ed0fffe6067b731227d8/crypto/aes.c#L1021 - -much of the code in crypto/aes.c accesses memory arrays where the array index is based on the secret data being encrypted/decrypted. because of cpu caches and other things that can delay memory accesses based on their address, this is a timing side-channel, potentially allowing leaking secrets over a network based on timing how long cryptography operations take. - -compare to openssl which uses an algorithm where its execution time doesn't depend on the data being processed: -https://github.com/openssl/openssl/commit/0051746e03c65f5970d8ca424579d50f58a877e0 - -I initially reported this as a security issue, but was told that since it's only used by TCG, it isn't a security issue, since TCG isn't considered secure.""" -reproduce = "n/a" -additional = "n/a" |