Vulnerability CVE-2022-24795: Information
Description
yajl-ruby is a C binding to the YAJL JSON parsing and generation library. The 1.x branch and the 2.x branch of `yajl` contain an integer overflow which leads to subsequent heap memory corruption when dealing with large (~2GB) inputs. The reallocation logic at `yajl_buf.c#L64` may result in the `need` 32bit integer wrapping to 0 when `need` approaches a value of 0x80000000 (i.e. ~2GB of data), which results in a reallocation of buf->alloc into a small heap chunk. These integers are declared as `size_t` in the 2.x branch of `yajl`, which practically prevents the issue from triggering on 64bit platforms, however this does not preclude this issue triggering on 32bit builds on which `size_t` is a 32bit integer. Subsequent population of this under-allocated heap chunk is based on the original buffer size, leading to heap memory corruption. This vulnerability mostly impacts process availability. Maintainers believe exploitation for arbitrary code execution is unlikely. A patch is available and anticipated to be part of yajl-ruby version 1.4.2. As a workaround, avoid passing large inputs to YAJL.
Severity: HIGH (7.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
---|---|---|---|---|---|---|
burp | sisyphus | 2.5.4-alt4 | 2.5.4-alt4 | ALT-PU-2023-4612-2 | 325037 | Fixed |
burp | sisyphus_e2k | 2.5.4-alt4 | 2.5.4-alt4 | ALT-PU-2023-4676-1 | - | Fixed |
burp | sisyphus_riscv64 | 2.5.4-alt4 | 2.5.4-alt4 | ALT-PU-2024-4091-1 | - | Fixed |
gem-yajl-ruby | sisyphus | 1.4.3-alt1 | 1.4.3-alt1 | ALT-PU-2023-7987-2 | 334339 | Fixed |
gem-yajl-ruby | sisyphus_e2k | 1.4.3-alt1 | 1.4.3-alt1 | ALT-PU-2024-6686-1 | - | Fixed |
gem-yajl-ruby | sisyphus_riscv64 | 1.4.3-alt1 | 1.4.3-alt1 | ALT-PU-2023-8088-1 | - | Fixed |
gem-yajl-ruby | sisyphus_loongarch64 | 1.4.3-alt1 | 1.4.3-alt1 | ALT-PU-2023-8065-1 | - | Fixed |