#perl

### Impact The `User-Agent` and `Server` header parsers are susceptible to a fatal error on certain inputs. In http4s, modeled headers are lazily parsed, so this only applies to services that explicitly request these typed headers. #### v0.21.x ```scala val unsafe: Option[`User-Agent`] = req.headers.get(`User-Agent`) ``` #### v0.22.x, v0.23.x, v1.x ```scala val unsafe: Option[`User-Agent`] = req.headers.get[`User-Agent`] val alsoUnsafe: Option[`Server`] = req.headers.get[Server] ``` ### Patches Fixes are released in 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38. ### Workarounds #### Use the weakly typed header interface ##### v0.21.x ```scala val safe: Option[Header] = req.headers.get("User-Agent".ci) // but don't do this val unsafe = header.map(_.parsed) ``` ##### v0.22.x, v0.23.x, v1.x ```scala val safe: Option[Header] = req.headers.get(ci"User-Agent") ```

The macro issues shaping the threat landscape can help security pros reset their priorities and reformulate strategy.

Ubuntu Security Notice 5789-1 - It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service or possibly execute arbitrary code. Jann Horn discovered that the Linux kernel did not properly track memory allocations for anonymous VMA mappings in some situations, leading to potential data structure reuse. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

The January 6 Committee’s 841-page report will go down as one of the most important documents in US history. These key details stand out.

GPAC MP4box 2.1-DEV-rev644-g5c4df2a67 is vulnerable to Buffer Overflow in gf_bs_read_data

GPAC MP4box 2.1-DEV-rev593-g007bf61a0 is vulnerable to Buffer Overflow in gf_hevc_read_sps_bs_internal function of media_tools/av_parsers.c:8261

GPAC MP4box 2.1-DEV-rev593-g007bf61a0 is vulnerable to Buffer Overflow in eac3_update_channels function of media_tools/av_parsers.c:9113

GPAC MP4box 2.1-DEV-rev574-g9d5bb184b is vulnerable to Buffer Overflow via gf_vvc_read_sps_bs_internal function of media_tools/av_parsers.c

GPAC MP4box 2.1-DEV-rev574-g9d5bb184b is vulnerable to heap use-after-free via filters/dmx_m2ts.c:470 in m2tsdmx_declare_pid

GPAC MP4box 2.1-DEV-rev574-g9d5bb184b has a Buffer overflow in gf_vvc_read_pps_bs_internal function of media_tools/av_parsers.c