Candidate: CVE-2019-13628
PublicDate: 2019-10-03 14:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13628
 https://github.com/wolfSSL/wolfssl/pull/2353
Description:
 wolfSSL and wolfCrypt 4.0.0 and earlier (when configured without
 --enable-fpecc, --enable-sp, or --enable-sp-math) contain a timing side
 channel in ECDSA signature generation. This allows a local attacker, able
 to precisely measure the duration of signature operations, to infer
 information about the nonces used and potentially mount a lattice attack to
 recover the private key used. The issue occurs because ecc.c scalar
 multiplication might leak the bit length.
Ubuntu-Description:
Notes:
Mitigation:
Bugs:
Priority: low
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N [4.7 MEDIUM]


Patches_wolfssl:
upstream_wolfssl: released (4.1.0+dfsg-1)
precise/esm_wolfssl: DNE
trusty_wolfssl: ignored (out of standard support)
trusty/esm_wolfssl: DNE
xenial_wolfssl: ignored (end of standard support, was needs-triage)
bionic_wolfssl: needs-triage
disco_wolfssl: ignored (reached end-of-life)
eoan_wolfssl: not-affected (4.1.0+dfsg-2)
focal_wolfssl: not-affected (4.1.0+dfsg-2)
groovy_wolfssl: not-affected (4.1.0+dfsg-2)
hirsute_wolfssl: not-affected (4.1.0+dfsg-2)
impish_wolfssl: not-affected (4.1.0+dfsg-2)
jammy_wolfssl: not-affected (4.1.0+dfsg-2)
devel_wolfssl: not-affected (4.1.0+dfsg-2)