| Summary: | <dev-libs/libgcrypt-1.7.8: flush+reload side-channel attack on RSA secret keys: "Sliding right into disaster". | ||
|---|---|---|---|
| Product: | Gentoo Security | Reporter: | Kristian Fiskerstrand (RETIRED) <k_f> |
| Component: | Vulnerabilities | Assignee: | Gentoo Security <security> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | bertrand, crypto+disabled, k_f |
| Priority: | Normal | Flags: | stable-bot:
sanity-check+
|
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | https://lists.gnupg.org/pipermail/gnupg-announce/2017q2/000408.html | ||
| Whiteboard: | B3 [noglsa cve] | ||
| Package list: |
dev-libs/libgcrypt-1.7.8
|
Runtime testing required: | --- |
| Bug Depends on: | 629160 | ||
| Bug Blocks: | 621218 | ||
commit 314d755d0e145799cf1771744df9f08932432b6d (HEAD -> master) Author: Kristian Fiskerstrand <k_f@gentoo.org> Date: Thu Jun 29 09:55:32 2017 +0200 dev-libs/libgcrypt: New upstream version 1.7.8 Package-Manager: Portage-2.3.6, Repoman-2.3.1 An automated check of this bug failed - the following atom is unknown: dev-libs/libgcrypt-1.7.8 Please verify the atom list. amd64 stable ia64 stable x86 stable arm stable sparc stable ppc stable ppc64 stable Changing designation to B3 as this requires specific configuration to be an attack vector, and impractical in nature. GLSA Vote: No Stable on alpha. ping for hppa |
Noteworthy changes in version 1.7.8 (2017-06-29) [C21/A1/R8] =================================== * Bug fixes: - Mitigate a flush+reload side-channel attack on RSA secret keys dubbed "Sliding right into disaster". For details see <https://eprint.iacr.org/2017/627>. [CVE-2017-7526] Note that this side-channel attack requires that the attacker can run arbitrary software on the hardware where the private RSA key is used. Allowing execute access to a box with private keys should be considered as a game over condition, anyway. Thus in practice there are easier ways to access the private keys than to mount this side-channel attack. However, on boxes with virtual machines this attack may be used by one VM to steal private keys from another VM.