CVE-2023-52616
In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this issue was ignored because memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag. For example, this error will be triggered when calculating the Za value for SM2 separately.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165Mailing List, Patch
- https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6Mailing List, Patch
- https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49Mailing List, Patch
- https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0aMailing List, Patch
- https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2aMailing List, Patch
- https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598Mailing List, Patch
- https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165Mailing List, Patch
- https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6Mailing List, Patch
- https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49Mailing List, Patch
- https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0aMailing List, Patch
- https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2aMailing List, Patch
- https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing List
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.