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| author | Charles Fol <folcharles@gmail.com> | 2024-03-28 12:25:38 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-04-17 14:05:08 -0300 |
| commit | 31da30f23cddd36db29d5b6a1c7619361b271fb4 (patch) | |
| tree | e4b651885616d91e8b84edf7fdca941685c125c4 /iconvdata/jis0201.c | |
| parent | 423099a03264ea28298f47355d7811b8efe03c97 (diff) | |
| download | glibc-31da30f23cddd36db29d5b6a1c7619361b271fb4.tar.gz glibc-31da30f23cddd36db29d5b6a1c7619361b271fb4.tar.xz glibc-31da30f23cddd36db29d5b6a1c7619361b271fb4.zip | |
iconv: ISO-2022-CN-EXT: fix out-of-bound writes when writing escape sequence (CVE-2024-2961)
ISO-2022-CN-EXT uses escape sequences to indicate character set changes (as specified by RFC 1922). While the SOdesignation has the expected bounds checks, neither SS2designation nor SS3designation have its; allowing a write overflow of 1, 2, or 3 bytes with fixed values: '$+I', '$+J', '$+K', '$+L', '$+M', or '$*H'. Checked on aarch64-linux-gnu. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com> (cherry picked from commit f9dc609e06b1136bb0408be9605ce7973a767ada)
Diffstat (limited to 'iconvdata/jis0201.c')
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