CVE-2022-24795

NameCVE-2022-24795
Descriptionyajl-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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3492-1, DLA-3516-1, ELA-892-1
Debian Bugs1014803, 1040036, 1040146, 1040159, 1040161

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
argyll (PTS)jessie1.6.3-4vulnerable
burp (PTS)jessie1.3.48-4.1fixed
stretch2.0.54-1vulnerable
buster2.1.32-2vulnerable
buster (security)2.1.32-2+deb10u1fixed
bullseye2.2.18-8vulnerable
bookworm3.1.4-1vulnerable
sid, trixie3.1.4-3.1vulnerable
collada2gltf (PTS)stretch20140924-4vulnerable
epics-base (PTS)bookworm7.0.3.1-4vulnerable
sid7.0.8+dfsg1-1vulnerable
r-cran-jsonlite (PTS)stretch1.2-1vulnerable
buster1.6+dfsg-1vulnerable
bullseye1.7.2+dfsg-1vulnerable
bookworm1.8.4+dfsg-1vulnerable
sid, trixie1.8.8+dfsg-1fixed
ruby-yajl (PTS)jessie1.2.0-2vulnerable
stretch1.2.0-3vulnerable
buster1.3.1-1vulnerable
bullseye1.4.1-1vulnerable
sid, trixie, bookworm1.4.3-1fixed
whitedb (PTS)jessie0.7.2-1vulnerable
stretch0.7.3-2vulnerable
xqilla (PTS)jessie2.3.0-2vulnerable
stretch2.3.3-2vulnerable
sid, buster, bullseye2.3.4-1fixed
yajl (PTS)jessie, jessie (lts)2.1.0-2+deb8u2fixed
stretch (lts), stretch2.1.0-2+deb9u2fixed
buster2.1.0-3vulnerable
buster (security)2.1.0-3+deb10u2fixed
bullseye2.1.0-3+deb11u2fixed
bookworm2.1.0-3+deb12u2fixed
sid, trixie2.1.0-5fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
argyllsourcejessie(unfixed)end-of-life
burpsourcejessie(not affected)
burpsourcebuster2.1.32-2+deb10u1DLA-3516-1
burpsource(unstable)(unfixed)1040146
collada2gltfsourcestretch(unfixed)end-of-life
epics-basesource(unstable)(unfixed)1040159
r-cran-jsonlitesource(unstable)1.8.8+dfsg-11040161
ruby-yajlsource(unstable)1.4.3-11014803
whitedbsourcejessie(unfixed)end-of-life
whitedbsourcestretch(unfixed)end-of-life
xqillasourcejessie(unfixed)end-of-life
xqillasourcestretch(unfixed)end-of-life
xqillasource(unstable)(not affected)
yajlsourcejessie2.1.0-2+deb8u2ELA-892-1
yajlsourcestretch2.1.0-2+deb9u2ELA-892-1
yajlsourcebuster2.1.0-3+deb10u2DLA-3492-1
yajlsourcebullseye2.1.0-3+deb11u2
yajlsourcebookworm2.1.0-3+deb12u2
yajlsource(unstable)2.1.0-41040036

Notes

[bullseye] - ruby-yajl <no-dsa> (Minor issue)
[buster] - ruby-yajl <no-dsa> (Minor issue)
[stretch] - ruby-yajl <no-dsa> (Minor issue)
[bookworm] - burp <no-dsa> (Minor issue)
[bullseye] - burp <no-dsa> (Minor issue)
[bookworm] - epics-base <no-dsa> (Minor issue)
[bookworm] - r-cran-jsonlite <no-dsa> (Minor issue)
[bullseye] - r-cran-jsonlite <no-dsa> (Minor issue)
[buster] - r-cran-jsonlite <no-dsa> (Minor issue)
- xqilla <not-affected> (Vulnerable code not present; embeds not-affected ancient yajl version)
xqilla's embedded yajl is ancient (around 0.2.2), not having the vulnerable code
https://github.com/brianmario/yajl-ruby/security/advisories/GHSA-jj47-x69x-mxrm
https://github.com/brianmario/yajl-ruby/commit/7168bd79b888900aa94523301126f968a93eb3a6
https://github.com/brianmario/yajl-ruby/commit/e8de283a6d64f0902740fd09e858fc3d7d803161
https://github.com/lloyd/yajl/issues/239
[stretch] - burp <postponed> (Minor issue, integer overflow for 32-bit architectures)
[jessie] - burp <not-affected> (yajl not embedded before stretch)
[stretch] - r-cran-jsonlite <postponed> (Minor issue, integer overflow for 32-bit architectures)
[jessie] - ruby-yajl <no-dsa> (Minor issue)

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