diff options
Diffstat (limited to 'meta/recipes-support/nettle/nettle-3.5.1/CVE-2021-20305-2.patch')
| -rw-r--r-- | meta/recipes-support/nettle/nettle-3.5.1/CVE-2021-20305-2.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/meta/recipes-support/nettle/nettle-3.5.1/CVE-2021-20305-2.patch b/meta/recipes-support/nettle/nettle-3.5.1/CVE-2021-20305-2.patch new file mode 100644 index 0000000000..bb56b14c8c --- /dev/null +++ b/meta/recipes-support/nettle/nettle-3.5.1/CVE-2021-20305-2.patch @@ -0,0 +1,53 @@ +Backport of: + +From 971bed6ab4b27014eb23085e8176917e1a096fd5 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se> +Date: Sat, 13 Mar 2021 17:26:37 +0100 +Subject: [PATCH] Use ecc_mod_mul_canonical for point comparison. + +* eddsa-verify.c (equal_h): Use ecc_mod_mul_canonical. + +(cherry picked from commit 5b7608fde3a6d2ab82bffb35db1e4e330927c906) + +Upstream-Status: Backport +https://sources.debian.org/data/main/n/nettle/3.4.1-1%2Bdeb10u1/debian/patches/CVE-2021-20305-2.patch +CVE: CVE-2021-20305 dep2 +Signed-off-by: Armin Kuster <akuster@mvista.com> + +--- + ChangeLog | 4 ++++ + eddsa-verify.c | 9 ++------- + 2 files changed, 6 insertions(+), 7 deletions(-) + +#diff --git a/ChangeLog b/ChangeLog +#index 5cc5c188..2a9217a6 100644 +#--- a/ChangeLog +#+++ b/ChangeLog +#@@ -1,3 +1,7 @@ +#+2021-03-13 Niels Möller <nisse@lysator.liu.se> +#+ +#+ * eddsa-verify.c (equal_h): Use ecc_mod_mul_canonical. +#+ +# 2021-03-11 Niels Möller <nisse@lysator.liu.se> +# +# * ecc-mod-arith.c (ecc_mod_mul_canonical, ecc_mod_sqr_canonical): +Index: nettle-3.5.1/eddsa-verify.c +=================================================================== +--- nettle-3.5.1.orig/eddsa-verify.c ++++ nettle-3.5.1/eddsa-verify.c +@@ -53,13 +53,8 @@ equal_h (const struct ecc_modulo *p, + #define t0 scratch + #define t1 (scratch + p->size) + +- ecc_mod_mul (p, t0, x1, z2); +- if (mpn_cmp (t0, p->m, p->size) >= 0) +- mpn_sub_n (t0, t0, p->m, p->size); +- +- ecc_mod_mul (p, t1, x2, z1); +- if (mpn_cmp (t1, p->m, p->size) >= 0) +- mpn_sub_n (t1, t1, p->m, p->size); ++ ecc_mod_mul_canonical (p, t0, x1, z2, t0); ++ ecc_mod_mul_canonical (p, t1, x2, z1, t1); + + return mpn_cmp (t0, t1, p->size) == 0; + |