diff options
Diffstat (limited to 'php-bug81738.patch')
| -rw-r--r-- | php-bug81738.patch | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/php-bug81738.patch b/php-bug81738.patch new file mode 100644 index 0000000..0c6aaa8 --- /dev/null +++ b/php-bug81738.patch @@ -0,0 +1,128 @@ +From de4517ad607df8d4cb3735228b39e4a48f95556c Mon Sep 17 00:00:00 2001 +From: Stanislav Malyshev <smalyshev@gmail.com> +Date: Thu, 20 Oct 2022 23:57:35 -0600 +Subject: [PATCH] Fix bug #81738 (buffer overflow in hash_update() on long + parameter) + +--- + NEWS | 6 ++++++ + ext/hash/sha3/generic32lc/KeccakSponge.inc | 14 ++++++++------ + ext/hash/sha3/generic64lc/KeccakSponge.inc | 14 ++++++++------ + 3 files changed, 22 insertions(+), 12 deletions(-) + +diff --git a/NEWS b/NEWS +index b7a19aea19..ce48558ad1 100644 +--- a/NEWS ++++ b/NEWS +@@ -1,6 +1,12 @@ + PHP NEWS + ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| + ++Backported from 7.4.33 ++ ++- Hash: ++ . Fixed bug #81738: buffer overflow in hash_update() on long parameter. ++ (CVE-2022-37454) (nicky at mouha dot be) ++ + Backported from 7.4.32 + + - Core: +diff --git a/ext/hash/sha3/generic32lc/KeccakSponge.inc b/ext/hash/sha3/generic32lc/KeccakSponge.inc +index 42a15aac6d..f8c42ff788 100644 +--- a/ext/hash/sha3/generic32lc/KeccakSponge.inc ++++ b/ext/hash/sha3/generic32lc/KeccakSponge.inc +@@ -160,7 +160,7 @@ int SpongeAbsorb(SpongeInstance *instance, const unsigned char *data, size_t dat + i = 0; + curData = data; + while(i < dataByteLen) { +- if ((instance->byteIOIndex == 0) && (dataByteLen >= (i + rateInBytes))) { ++ if ((instance->byteIOIndex == 0) && (dataByteLen-i >= rateInBytes)) { + #ifdef SnP_FastLoop_Absorb + /* processing full blocks first */ + if ((rateInBytes % (SnP_width/200)) == 0) { +@@ -186,9 +186,10 @@ int SpongeAbsorb(SpongeInstance *instance, const unsigned char *data, size_t dat + } + else { + /* normal lane: using the message queue */ +- partialBlock = (unsigned int)(dataByteLen - i); +- if (partialBlock+instance->byteIOIndex > rateInBytes) ++ if (dataByteLen-i > rateInBytes-instance->byteIOIndex) + partialBlock = rateInBytes-instance->byteIOIndex; ++ else ++ partialBlock = (unsigned int)(dataByteLen - i); + #ifdef KeccakReference + displayBytes(1, "Block to be absorbed (part)", curData, partialBlock); + #endif +@@ -263,7 +264,7 @@ int SpongeSqueeze(SpongeInstance *instance, unsigned char *data, size_t dataByte + i = 0; + curData = data; + while(i < dataByteLen) { +- if ((instance->byteIOIndex == rateInBytes) && (dataByteLen >= (i + rateInBytes))) { ++ if ((instance->byteIOIndex == rateInBytes) && (dataByteLen-i >= rateInBytes)) { + for(j=dataByteLen-i; j>=rateInBytes; j-=rateInBytes) { + SnP_Permute(instance->state); + SnP_ExtractBytes(instance->state, curData, 0, rateInBytes); +@@ -280,9 +281,10 @@ int SpongeSqueeze(SpongeInstance *instance, unsigned char *data, size_t dataByte + SnP_Permute(instance->state); + instance->byteIOIndex = 0; + } +- partialBlock = (unsigned int)(dataByteLen - i); +- if (partialBlock+instance->byteIOIndex > rateInBytes) ++ if (dataByteLen-i > rateInBytes-instance->byteIOIndex) + partialBlock = rateInBytes-instance->byteIOIndex; ++ else ++ partialBlock = (unsigned int)(dataByteLen - i); + i += partialBlock; + + SnP_ExtractBytes(instance->state, curData, instance->byteIOIndex, partialBlock); +diff --git a/ext/hash/sha3/generic64lc/KeccakSponge.inc b/ext/hash/sha3/generic64lc/KeccakSponge.inc +index 42a15aac6d..f8c42ff788 100644 +--- a/ext/hash/sha3/generic64lc/KeccakSponge.inc ++++ b/ext/hash/sha3/generic64lc/KeccakSponge.inc +@@ -160,7 +160,7 @@ int SpongeAbsorb(SpongeInstance *instance, const unsigned char *data, size_t dat + i = 0; + curData = data; + while(i < dataByteLen) { +- if ((instance->byteIOIndex == 0) && (dataByteLen >= (i + rateInBytes))) { ++ if ((instance->byteIOIndex == 0) && (dataByteLen-i >= rateInBytes)) { + #ifdef SnP_FastLoop_Absorb + /* processing full blocks first */ + if ((rateInBytes % (SnP_width/200)) == 0) { +@@ -186,9 +186,10 @@ int SpongeAbsorb(SpongeInstance *instance, const unsigned char *data, size_t dat + } + else { + /* normal lane: using the message queue */ +- partialBlock = (unsigned int)(dataByteLen - i); +- if (partialBlock+instance->byteIOIndex > rateInBytes) ++ if (dataByteLen-i > rateInBytes-instance->byteIOIndex) + partialBlock = rateInBytes-instance->byteIOIndex; ++ else ++ partialBlock = (unsigned int)(dataByteLen - i); + #ifdef KeccakReference + displayBytes(1, "Block to be absorbed (part)", curData, partialBlock); + #endif +@@ -263,7 +264,7 @@ int SpongeSqueeze(SpongeInstance *instance, unsigned char *data, size_t dataByte + i = 0; + curData = data; + while(i < dataByteLen) { +- if ((instance->byteIOIndex == rateInBytes) && (dataByteLen >= (i + rateInBytes))) { ++ if ((instance->byteIOIndex == rateInBytes) && (dataByteLen-i >= rateInBytes)) { + for(j=dataByteLen-i; j>=rateInBytes; j-=rateInBytes) { + SnP_Permute(instance->state); + SnP_ExtractBytes(instance->state, curData, 0, rateInBytes); +@@ -280,9 +281,10 @@ int SpongeSqueeze(SpongeInstance *instance, unsigned char *data, size_t dataByte + SnP_Permute(instance->state); + instance->byteIOIndex = 0; + } +- partialBlock = (unsigned int)(dataByteLen - i); +- if (partialBlock+instance->byteIOIndex > rateInBytes) ++ if (dataByteLen-i > rateInBytes-instance->byteIOIndex) + partialBlock = rateInBytes-instance->byteIOIndex; ++ else ++ partialBlock = (unsigned int)(dataByteLen - i); + i += partialBlock; + + SnP_ExtractBytes(instance->state, curData, instance->byteIOIndex, partialBlock); +-- +2.37.3 + |