diff options
Diffstat (limited to 'gnu/packages/patches/openssl-1.0.2-CVE-2018-0732.patch')
| -rw-r--r-- | gnu/packages/patches/openssl-1.0.2-CVE-2018-0732.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gnu/packages/patches/openssl-1.0.2-CVE-2018-0732.patch b/gnu/packages/patches/openssl-1.0.2-CVE-2018-0732.patch new file mode 100644 index 0000000000..50b95306a5 --- /dev/null +++ b/gnu/packages/patches/openssl-1.0.2-CVE-2018-0732.patch @@ -0,0 +1,50 @@ +Fix CVE-2018-0732: + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0732 + +Patch copied from upstream source repository: + +https://github.com/openssl/openssl/commit/3984ef0b72831da8b3ece4745cac4f8575b19098 + +From 3984ef0b72831da8b3ece4745cac4f8575b19098 Mon Sep 17 00:00:00 2001 +From: Guido Vranken <guidovranken@gmail.com> +Date: Mon, 11 Jun 2018 19:38:54 +0200 +Subject: [PATCH] Reject excessively large primes in DH key generation. + +CVE-2018-0732 + +Signed-off-by: Guido Vranken <guidovranken@gmail.com> + +(cherry picked from commit 91f7361f47b082ae61ffe1a7b17bb2adf213c7fe) + +Reviewed-by: Tim Hudson <tjh@openssl.org> +Reviewed-by: Matt Caswell <matt@openssl.org> +(Merged from https://github.com/openssl/openssl/pull/6457) +--- + crypto/dh/dh_key.c | 7 ++++++- + 1 file changed, 6 insertions(+), 1 deletion(-) + +diff --git a/crypto/dh/dh_key.c b/crypto/dh/dh_key.c +index 387558f146..f235e0d682 100644 +--- a/crypto/dh/dh_key.c ++++ b/crypto/dh/dh_key.c +@@ -130,10 +130,15 @@ static int generate_key(DH *dh) + int ok = 0; + int generate_new_key = 0; + unsigned l; +- BN_CTX *ctx; ++ BN_CTX *ctx = NULL; + BN_MONT_CTX *mont = NULL; + BIGNUM *pub_key = NULL, *priv_key = NULL; + ++ if (BN_num_bits(dh->p) > OPENSSL_DH_MAX_MODULUS_BITS) { ++ DHerr(DH_F_GENERATE_KEY, DH_R_MODULUS_TOO_LARGE); ++ return 0; ++ } ++ + ctx = BN_CTX_new(); + if (ctx == NULL) + goto err; +-- +2.17.1 + |