Vulnerability · Published Dec 31, 2021 · Assigned by mitre

CVE-2021-45931

Medium 6.5

In plain English

A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities).

Severity (CVSS NVD)6.5Medium

Exploit odds (30 days)1.8%top 20.9% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set (called from hb_sparseset_t<hb_bit_set_invertible_t>::set and hb_set_copy).

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/google/oss-fuzz-vulns/blob/main/vulns/harfbuzz/OSV-2021-1159.yaml x_refsource_MISC
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37425 x_refsource_MISC
https://github.com/harfbuzz/harfbuzz/commit/d3e09bf4654fe5478b6dbf2b26ebab6271317d81 x_refsource_MISC
FEDORA-2022-a03b13b4d2 vendor-advisory, x_refsource_FEDORA
FEDORA-2022-4bfa39df02 vendor-advisory, x_refsource_FEDORA
FEDORA-2022-b3b5ac4053 vendor-advisory, x_refsource_FEDORA
GLSA-202209-11 vendor-advisory, x_refsource_GENTOO