In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ntfs: fix off-by-one in mapping pairs decoding bounds checks<\/p>\n
In ntfs_mapping_pairs_decompress(), attr_end points one byte past the
\nend of the attribute record:<\/p>\n
attr_end = (u8 *)attr + le32_to_cpu(attr->length);<\/p>\n
The two bounds checks validating that mapping pair data bytes fit within
\nthe attribute use strict greater-than (>), which allows a one-byte
\nout-of-bounds read when the data extends exactly to attr_end:<\/p>\n
b = *buf & 0xf;
\n if (b) {
\n if (unlikely(buf + b > attr_end)) \/\/ off-by-one
\n goto io_error;
\n for (deltaxcn = (s8)buf[b–]; b; b–)
\n deltaxcn = (deltaxcn <= so that buf[b] at exactly attr_end is
\ncorrectly rejected as out of bounds.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
ntfs: fix off-by-one in mapping pairs decoding bounds checks<\/p>\n
In ntfs_mapping_pairs_decompress(), attr_end points one byte past the<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-6840","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/6840","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}