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home:dirkmueller:acdc:as_python3_module
opensc
opensc-CVE-2023-40661-8of12.patch
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File opensc-CVE-2023-40661-8of12.patch of Package opensc
From 638a5007a5d240d6fa901aa822cfeef94fe36e85 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Veronika=20Hanul=C3=ADkov=C3=A1?= <vhanulik@redhat.com> Date: Thu, 10 Aug 2023 12:20:33 +0200 Subject: [PATCH] pkcs15-pubkey.c: Avoid double-free Thanks OSS-Fuzz https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=60616 --- src/libopensc/pkcs15-pubkey.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/libopensc/pkcs15-pubkey.c b/src/libopensc/pkcs15-pubkey.c index 7107c47cbc..49b514968b 100644 --- a/src/libopensc/pkcs15-pubkey.c +++ b/src/libopensc/pkcs15-pubkey.c @@ -351,8 +351,12 @@ int sc_pkcs15_decode_pukdf_entry(struct sc_pkcs15_card *p15card, err: if (r < 0) { sc_pkcs15_free_pubkey_info(info); - if (der->len) + if (der->len) { free(der->value); + /* der points to obj->content */ + obj->content.value = NULL; + obj->content.len = 0; + } } LOG_FUNC_RETURN(ctx, r);
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