| Name | CVE-2023-4863 |
| Description | Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical) |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3568-1, DLA-3569-1, DLA-3570-1, DSA-5496-1, DSA-5497-1, DSA-5497-2, DSA-5498-1 |
| Debian Bugs | 1051787 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| chromium (PTS) | bullseye (security), bullseye | 120.0.6099.224-1~deb11u1 | fixed |
| bookworm | 134.0.6998.35-1~deb12u1 | fixed | |
| bookworm (security) | 136.0.7103.92-1~deb12u1 | fixed | |
| trixie | 135.0.7049.95-1 | fixed | |
| sid | 136.0.7103.92-2 | fixed | |
| firefox (PTS) | sid | 138.0.3-1 | fixed |
| firefox-esr (PTS) | bullseye | 115.14.0esr-1~deb11u1 | fixed |
| bullseye (security) | 128.9.0esr-1~deb11u1 | fixed | |
| bookworm | 128.8.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 128.10.0esr-1~deb12u1 | fixed | |
| sid, trixie | 128.10.0esr-1 | fixed | |
| libwebp (PTS) | bullseye (security), bullseye | 0.6.1-2.1+deb11u2 | fixed |
| bookworm, bookworm (security) | 1.2.4-0.2+deb12u1 | fixed | |
| sid, trixie | 1.5.0-0.1 | fixed | |
| thunderbird (PTS) | bullseye | 1:115.12.0-1~deb11u1 | fixed |
| bullseye (security) | 1:128.10.0esr-1~deb11u1 | fixed | |
| bookworm | 1:128.8.0esr-1~deb12u1 | fixed | |
| bookworm (security) | 1:128.10.0esr-1~deb12u1 | fixed | |
| sid, trixie | 1:128.10.0esr-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| chromium | source | buster | (unfixed) | end-of-life | ||
| chromium | source | (unstable) | 117.0.5938.62-1 | unimportant | ||
| firefox | source | (unstable) | 117.0.1-1 | |||
| firefox-esr | source | buster | 102.15.1esr-1~deb10u1 | DLA-3568-1 | ||
| firefox-esr | source | bullseye | 102.15.1esr-1~deb11u1 | DSA-5496-1 | ||
| firefox-esr | source | bookworm | 102.15.1esr-1~deb12u1 | DSA-5496-1 | ||
| firefox-esr | source | (unstable) | 115.2.1esr-1 | |||
| libwebp | source | buster | 0.6.1-2+deb10u3 | DLA-3570-1 | ||
| libwebp | source | bullseye | 0.6.1-2.1+deb11u2 | DSA-5497-2 | ||
| libwebp | source | bookworm | 1.2.4-0.2+deb12u1 | DSA-5497-1 | ||
| libwebp | source | (unstable) | 1.2.4-0.3 | 1051787 | ||
| thunderbird | source | buster | 1:102.15.1-1~deb10u1 | DLA-3569-1 | ||
| thunderbird | source | bullseye | 1:102.15.1-1~deb11u1 | DSA-5498-1 | ||
| thunderbird | source | bookworm | 1:102.15.1-1~deb12u1 | DSA-5498-1 | ||
| thunderbird | source | (unstable) | 1:115.2.2-1 |
[buster] - chromium <end-of-life> (see DSA 5046)
https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html
src:chromium builds against the system libwebp library
Fixed by: https://chromium.googlesource.com/webm/libwebp.git/+/902bc9190331343b2017211debcec8d2ab87e17a%5E%21/
Followup: https://chromium.googlesource.com/webm/libwebp.git/+/95ea5226c870449522240ccff26f0b006037c520%5E%21/#F0
https://www.mozilla.org/en-US/security/advisories/mfsa2023-40/#CVE-2023-4863
https://blog.isosceles.com/the-webp-0day/
https://www.darknavy.org/blog/exploiting_the_libwebp_vulnerability_part_1/
https://www.darknavy.org/blog/exploiting_the_libwebp_vulnerability_part_2/