diff options
Diffstat (limited to 'app-emulation/spice/files/spice-0.14.3-CVE-2020-14355-404d7478.patch')
-rw-r--r-- | app-emulation/spice/files/spice-0.14.3-CVE-2020-14355-404d7478.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/app-emulation/spice/files/spice-0.14.3-CVE-2020-14355-404d7478.patch b/app-emulation/spice/files/spice-0.14.3-CVE-2020-14355-404d7478.patch new file mode 100644 index 000000000000..338f4e6ca657 --- /dev/null +++ b/app-emulation/spice/files/spice-0.14.3-CVE-2020-14355-404d7478.patch @@ -0,0 +1,31 @@ +diff --git a/common/quic.c b/common/quic.c +index bc753ca5064a0326906b4aa8c18d8745747feb5c..681531677fbd6c3bca5e482c77bb709d4465ef8e 100644 +--- a/subprojects/spice-common/common/quic.c ++++ b/subprojects/spice-common/common/quic.c +@@ -56,6 +56,9 @@ typedef uint8_t BYTE; + #define MINwminext 1 + #define MAXwminext 100000000 + ++/* Maximum image size in pixels, mainly to avoid possible integer overflows */ ++#define SPICE_MAX_IMAGE_SIZE (512 * 1024 * 1024 - 1) ++ + typedef struct QuicFamily { + unsigned int nGRcodewords[MAXNUMCODES]; /* indexed by code number, contains number of + unmodified GR codewords in the code */ +@@ -1165,6 +1168,16 @@ int quic_decode_begin(QuicContext *quic, uint32_t *io_ptr, unsigned int num_io_w + height = encoder->io_word; + decode_eat32bits(encoder); + ++ if (width <= 0 || height <= 0) { ++ encoder->usr->warn(encoder->usr, "invalid size\n"); ++ return QUIC_ERROR; ++ } ++ ++ /* avoid too big images */ ++ if ((uint64_t) width * height > SPICE_MAX_IMAGE_SIZE) { ++ encoder->usr->error(encoder->usr, "image too large\n"); ++ } ++ + quic_image_params(encoder, type, &channels, &bpc); + + if (!encoder_reset_channels(encoder, channels, width, bpc)) { |